Infosys papers

 

 

 

 

1. Persons A and B. Person A picks a random no. from 1 to 1000.Then person B picks a random no. from 1 to 1000. What is the probability of B getting no. greater then what A has picked.

 

2. Some free body diagram is given

 

            3 | 9

--------------------------------

            2 | 4 |

       ~~~~~~~~~~~~~~~~~

           C  | 5 | 9   15

       ~~~~~~~~~~~~~~~~

           3 | 2 |

          ~~~~~~~~

        80   | |   A B

 

For equilibirium find values of A,B,and C.

3. Three boys and three girls brought up together. Jim,Jane,Tom,Virgina,Dorthy,and XXX. They marry among themselves to form three couples. Conditions are :

 

i) Sum of their ages would be the same.

ii) Virgina was the oldest.

iii) Jim was dorthy's brother.

iv) Sum of ages Jane+Jim and Tom+dorthy is same.

Give the three couples.

 

4. X^(1/3) - X^(1/9) =60

Solve for X.

 

5.

 

     X Z Y

    +X Y Z

  ---------

     Y Z X

  ---------

 

Find the three digits.

6. Two boats start from opposite banks of river perpendicular to theshore.One is faster then the other.They meet at 720 yards from one of theends. After reaching opposite ends they rest for 10 mins each. After that they start back. This time on the return journey they meet at 400 yards from the other end of the river. Calculate the width of the river.

 

7. Basketball Tournament organisers decided that two consecutive defeats will knock out the team. There are 51 teams participating. What is the maximum no. of matches that can be played.

 

8. Three guys are there A,B,C. They have three subjects to take from biology, Mathematics, Physics, Chemistry. The four statements of the guys are given. Only two statements are correct out of them.

 

9. The Master says to his grandmaster that me and my three cousins have ages in prime numbers only. Summation of our ages is 50. Grandmaster who knows the age of the master instantly tells the ages of the three cousins. Tell the ages of three cousins.( 1 is not considered as prime no.)

 

10. There are two families Alens and smiths. They have two children each. There names are A,B,C,D whose ages are different and ages are less then or equal to 11. The following conditions are given:-

 

i) A's age is three years less then his brother's age.

ii) B is eldest among the four.

iii) C is half the age of the eldest in Alens family.

iv) The difference in sum of the ages of Alens children and smiths children is same as that of five years ago.

Find the ages of all the childeren.

 

 

 

1. Replace each letter by a digit. Each letter must be represented by the same digit and no beginning letter of a word can be 0.

 

   O N E

   O N E

   O N E

   O N E

  -------

   T E N

  -------

 

Ans: 0 =1, N = 8 ,E = 2, T = 7.

 

2. Ann, Boobie, Cathy and Dave are at their monthly business meeting. Their occupations are author, biologist, chemist and doctor, but not necessarily in that order. Dave just told the biologist that Cathy was on her way with doughnuts. Ann is sitting across from the doctor and next to the chemist. The doctor was thinking that Boobie was a goofy name for parent's to choose,but didn't say anything. What is each person's occupation? Ans: Since Dave spoke to the biologist and Ann sat next to the chemist and across the doctor, Cathy must be the author and Ann the biologist. The doctor didn't speak, but David did, so Bobbie is the doctor and Dave the chemist.

 

3. Sometime after 10:00 PM a murder took place. A witness claimed that the clock must have stopped at the time of the shooting. It was later found that the postion of both the hands were the same but their positions had interchanged. Tell the time of the shooting (both actual and claimed).

 

Ans: Time of shooting = 11:54 PM Claimed Time = 10:59 PM.

 

4. Next number in the series is 1 , 2 , 4 , 13 , 31 , 112 , ?

 

Ans: 224.

 

No number has digits more than 4. All of them are 1 , 2, 4, 8 , 16 , 32 , 64 converted to numbers in base 5.

 

5. Shahrukh speaks truth only in the morning and lies in the afternoon, whereas Salman speaks truth only in the afternoon. A says that B is Shahrukh. Is it morning or afternoon and who is A - Shahrukh or Salman?

 

Ans: Afternoon.A is Salman.

 

6. Two trains starting at same time, one from Bangalore to Mysore and other in opposite direction arrive at their destination 1 hr and 4 hours respectively after passing each other. How nuch faster is one train from other?

 

Ans: Twice.

 

7. There are 6 volumes of books on a rack kept in order ( ie vol.1, vol. 2 and so on ). Give the position after the following changes were noticed. All books have been changed Vol.5 was directly to the right of Vol.2 Vol.4 has Vol.6 to its left and both weren't at Vol.3's place.Vol.1 has Vol.3 on right and Vol.5 on left. An even numbered volume is at Vol.5's place Find the order in which the books are kept now.

 

Ans: 2, 5,1,3,6,4.

 

8. I bought a car with a peculiar 5 digit numbered licence plate which on reversing could still be read. On reversing value is increased by 78633.Whats the original number if all digits were different?

 

Ans: Only 0 1 6 8 and 9 can be read upside down. So on rearranging these digits, we get the answer as 10968.

 

9. The shape in the sketch below is that of a square attached to half of a similar square. Divide it into four equal pieces.

 

Ans: Hint : The figure can be divided into 12 equal triangles.

 

10. Supposing a clock takes 7 seconds to strike 7. How long will it take to strike 10?

 

Ans: 10 1/2 seconds

 

 

 

 

 

1. There is a escalator and 2 persons move down it.A takes 50 steps and B takes 75 steps while the escalator is moving down.Given that the time taken by A to take 1 step is equal to time taken by B to take 3 steps.Find the no. of steps in the escalator while it is staionary.

 

2. If 5/2 artists make 5/2 paintings using 5/2 canvases in 5/2 days then how many artists r required to make 25 paintings using 25 canvases in 25 days?

 

3. If the digits of my present age are reversed then i get the age of my son.If 1 year ago my age was twice as that of my son.Find my present age.

ans. father-73, son-37

 

4. There are 6561 balls out of them 1 is heavy.Find the min. no. of times the balls have to be weighed for finding out the haevy ball.

ans. 8

 

5. If i walk with 30 miles/hr i reach 1 hour before and if i walk with 20 miles/hr i reach 1 hour late.Find the distance between 2 points and the exact time of reaching destination is 11 am then find the speed with which it walks.

ans. 120miles and 24 miles/hr

 

6. There r four face cards (J,Q,K,A) all of different types(diamond,club,spade,heart) and some conditions r given.find the order of cards

ans. king -> jack -> queen -> ace

heart diamond spade club

 

7. If A,B,C,D,E r 5 members of a family.4 of them give true statements :

1. E is my mother in law

2. C is my son in law's brother

3. B is my father's brother

4. A is my brother's wife

 

Who made the stmt. and what r the realtions among them

ans. E

|

A<-->B--C

|

D

<--> denotes husband-wife

-- denotes brothers

 

8. The product of 5 different temperatures is 12.If all of then r integers then find all the temperatures

ans. -2,-1,1,2,3

 

9. If a flight travels between India(IST) and Toronto(TST).There r 2 types of flights slow and fast.

 

IST TST

SLOW - -

FAST - -

 

TST IST

SLOW - -

FAST - ?

 

These are the departure times and arrival times for slow and fast flights in IST and TST. then find the time in ?

ans. 22:40

 

10.There r 9 cities numbered 1 to 9.From how many cities the flight can start so as to reach the city 8 either directly or indirectly such the path formed is divisible by 3.

eg. 1368-Flights goes through 1-3-6-8.

 

 

 

 

 

 

1) Every station in N railroad issues every other station's ticket. Some stations are added. Now they have to issue 46 more tickets. Give the No. of stations after and before added.

 

(5 marks).

 

2) There was a race between 3 people. Me, Doug and Anne. When I take 21 steps the distance covered is equal to Doug's 24 steps and Anne's 28 steps. I take 6 steps to every 7 steps of Doug and 8 steps of Anne. Who won the race?

 

3)How many bearers will an explorer need for a 6 day march if each man can carry the food stuff of one man for 4 days.

 

4) Consider the following statements:

Albert: Dave did it.

Dave: Tony did it.

Gug: I did not do it.

Tony: Dave lied when he said that i did it.

(a)If only one out of all above statements is true, who did it?

(b)If only one out of all above statements is false, who did it?

 

5) A contribution of Rs. 500 was raisedfrom 500 people. The fee was as follows:

Men: Rs.3.00 each

Women: Rs. 2.00 each

Childern: 0.48 each

If number of women is more than number of men, how many childern are there?

 

(5 marks)

 

6) Alice and Liu had some berries. The total of Alice's berries and square of number of berries with Liu is 62. The total of Liu's berries and square of number of berries with Alice is 176. How many berries does each of them have?

 

(6 marks)

 

7) A rope ladder was left down from a ship. 12 steps of the ladder were exposed at 10:00 am. The queen who was going to visit the ship, said she would visit at 1:00 pm as she would have to climb lesser number of steps then. The tide in the sea increases from morning to afternoon at the rate of 1.2 meters per hour. The distance between any 2 steps of the ladder is 0.4 mts. How many steps will the queen have to climb?

 

8) 5 hunters Doe, Deer,Hare,Boarand Row kill 5 animals. Each hunter kills an animal that does not corrspond to his name. Also each hunter misses a different animal which again does not correspond to his name.

a) The Deer is killed by the hunter,known by the name of the animal killed by Boar.

b) Doe is killed by the hunter, known by name of animal missed by Hare.

c) The Deer was disappointed to kill only a Hare and missed the Roe.

 

9) There was 1 more on moon gravity 1/6, weight ...

 

  1. There is a escalator and 2 persons move down it.A takes 50 steps and B takes 75 steps while the escalator is moving down.Given that the time taken by A to take 1 step is equal to time taken by B to take 3 steps.Find the no. of steps in the escalator while it is staionary.

    2. If 5/2 artists make 5/2 paintings using 5/2 canvases in 5/2 days then how many artists r required to make 25 paintings using 25 canvases in 25 days?

    3. If the digits of my present age are reversed then i get the age of my son.If 1 year ago my age was twice as that of my son.Find my present age.
    ans. father-73, son-37

    4. There are 6561 balls out of them 1 is heavy.Find the min. no. of times the balls have to be weighed for finding out the haevy ball.
    ans. 8

    5. If i walk with 30 miles/hr i reach 1 hour before and if i walk with 20 miles/hr i reach 1 hour late.Find the distance between 2 points and the exact time of reaching destination is 11 am then find the speed with which it walks.
    ans. 120miles and 24 miles/hr

    6. There r four face cards (J,Q,K,A) all of different types(diamond,club,spade,heart) and some conditions r given.find the order of cards
    ans. king -> jack -> queen -> ace
    heart diamond spade club

    7. If A,B,C,D,E r 5 members of a family.4 of them give true statements : 
    1. E is my mother in law
    2. C is my son in law's brother
    3. B is my father's brother
    4. A is my brother's wife

    Who made the stmt. and what r the realtions among them
    ans. E

    A<-->B--C
    |
    D
    <--> denotes husband-wife
    -- denotes brothers

    8. The product of 5 different temperatures is 12.If all of then r integers then find all the temperatures
    ans. -2,-1,1,2,3

    9. If a flight travels between India(IST) and Toronto(TST).There r 2 types of flights slow and fast.

    IST TST
    SLOW - - 
    FAST - - 

    TST IST
    SLOW - -
    FAST - ?

    These are the departure times and arrival times for slow and fast flights in IST and TST. then find the time in ?
    ans. 22:40

    10.There r 9 cities numbered 1 to 9.From how many cities the flight can start so as to reach the city 8 either directly or indirectly such the path formed is divisible by 3.
    eg. 1368-Flights goes through 1-3-6-8.

    11. If i do this puzzle i find it to be hard than the last puzzle that i did before that after that..............very complex stmt.
    Is that puzzle difficult,easy,can't say or depends on the no. of puzzles

 

 

 

1. I participated in a race.1/5th of those who are before me are equal to 5/6th of those behind me. What were the total number of contestants in the race?

(3 Marks)

2. Find the 3 digit number. Third digit is square root of first digit. Second digit is sum of first and third digits. Find the number.

(3 Marks)

3. This problem is of time and work type. Some A and some B are able to produce so many tors in so many hours.(for example 10 A and 20 B are able to produce 30 tors per hour). Like this one more sentence was given. We have to find out the rate of working of A and B in tors/hour.

(4 Marks)

4. A and B play a game of dice between them. The dice consists of colors on their faces instead of numbers. A wins if both dice show same color. B wins if both dice show different colors. One dice consists of 1 red and 5 blue. What must be the color in the faces of other dice.(i.e how many blue and how many red?). Chances of winning for A and B are even.

(5 Marks)

5. A girl has 55 marbles. She arranges them in n rows. The nth row consists of n marbles, the (n-1)th row consists of (n-1) marbles and so on. What are the number of marbles in nth row?

(3 Marks)

6. This question is of analogy type. Some sentences regarding tastes of people to poetry are given like all who like A's Poem, like the poems of B. Like this 7 or 8 sentences were given. Questions were based on this.

(8 Marks)

7. This question is also of analogy type. Four persons are there A,B,C,D. Each of the four persons own either P,Q,R,S. 10 sentences using if clause were given. We have to find out which belongs to whom.

(8 Marks)

8. This question involves percentage.

(5 Marks)

9. Problems on ages.

(6 Marks)

10. Problems on time and distance.

 

 

 

 

 

 

1) Every station in N railroad issues every other station's ticket. Some stations are added. Now they have to issue 46 more tickets. Give the No. of stations after and before added.

(5 marks).

2) There was a race between 3 people. Me, Doug and Anne. When I take 21 steps the distance covered is equal to Doug's 24 steps and Anne's 28 steps. I take 6 steps to every 7 steps of Doug and 8 steps of Anne. Who won the race?

3)How many bearers will an explorer need for a 6 day march if each man can carry the food stuff of one man for 4 days.

4) Consider the following statements:
Albert: Dave did it.
Dave: Tony did it.
Gug: I did not do it.
Tony: Dave lied when he said that i did it.
(a)If only one out of all above statements is true, who did it?
(b)If only one out of all above statements is false, who did it?

5) A contribution of Rs. 500 was raisedfrom 500 people. The fee was as follows:
Men: Rs.3.00 each
Women: Rs. 2.00 each
Childern: 0.48 each
If number of women is more than number of men, how many childern are there?

(5 marks)

6) Alice and Liu had some berries. The total of Alice's berries and square of number of berries with Liu is 62. The total of Liu's berries and square of number of berries with Alice is 176. How many berries does each of them have?

(6 marks)

7) A rope ladder was left down from a ship. 12 steps of the ladder were exposed at 10:00 am. The queen who was going to visit the ship, said she would visit at 1:00 pm as she would have to climb lesser number of steps then. The tide in the sea increases from morning to afternoon at the rate of 1.2 meters per hour. The distance between any 2 steps of the ladder is 0.4 mts. How many steps will the queen have to climb?

8) 5 hunters Doe, Deer,Hare,Boarand Row kill 5 animals. Each hunter kills an animal that does not corrspond to his name. Also each hunter misses a different animal which again does not correspond to his name.
a) The Deer is killed by the hunter,known by the name of the animal killed by Boar.
b) Doe is killed by the hunter, known by name of animal missed by Hare.
c) The Deer was disappointed to kill only a Hare and missed the Roe.

9) There was 1 more on moon gravity 1/6, weight ...

Altogether there were 11 questions to be completed in 1 hr.English test was simple for 30 mins - 1 comprehension & other fill in the blank kinds, questions some sentence correction questions.