infosys exam on 15th may 2005

8/8/2019 Infosys exam on 15th may 2005

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Infosys exam on 15th may 2005

Paper started on 15th at 9:00 am atTagore International School in Delhi

The duration of the paper was 2.30 hrs.

For the first half an hour a form was given to us and they ask us to fill that.

It contained d detailed information of our education with percentage and rank.

I think that is also considered during the evaluation of written paper.

After half an hour, there was written paper for 1 hour having ten puzzles to solve

10 puzzles

==========

1>( 3 marks)

Sandy's uncle died leaving 1000 rs behind to be distributed among his five nephews.

The money is to be divided among the nephews according to their ages. A person gets

Rs 20 more than his immediate younger brother.Sandy being the youngest what was his share?

Ans. Rs 160.0

It was quite an easy one.

let sandy's share be x

x+x+20+x+40+x+60+x+80=1000

5x+200=1000

x=800/5

x=160


2/7

2> ( 4 marks)

Rohit was descending from the elavator which was not working. When he had stepped down

7 steps his sir started from the bottom of the elevator and they passed each other and when Rohit

had still 4 steps to go down, his sir reached at the top. Taking into consideration that sirs 2 stepstook same time as Rohits one what were the total no of steps?

Ans

22 steps

let no of steps be x

speed=distance/time

Distance covered by Rohit = x-7-4 (7 steps already covered and 4 were still to go)

Distance covered by sir = x

Speed of Rohit =s

Speed of sir = 2s

Time taken is equal in both the cases so

Time(rohit)=time(sir)

(x-7-4) / s = x / 2s

2x 22 = x

x=22

3> ( 3 marks)

A vendor who is an ex-mathematician has a number of apples and when he arranges them in

rows of 3 he is left with one more, when he arranges them in rows of 5 again he is left with 1

more, Same happens with when he tries to arrange them in rows of 7 and 9 that is 1 apple is left

extra.


3/7

But when he arranges them in a row of 11 he is left with none. Can u tell me how many apples

were there?

Ans

946

the no is a multiple of 3,5,7,9 + a remainder of 1. So

3* 5* 7* 9= 945 + 1 =946

946 /11= 86

so it is divisible by 11 also.

4> ( 4 marks)

A theft was reported in a p[olice station and police detained 3 persons Tommy, Lee and Andy

on the basis of doubt. However everyone said that he did not steal and one among the other two

is the thief. Later on police came to know that Tommy was lying. Who was the real thief?

Ans

Tommy

He gave 2 false statements:

1: he didnt steal though he was the thief.

2: one among the other two did it. If he is the thief how can other 2 do it.

It was very easy and infact that created a doubt n everyone cross checked it again n again to be

sure as nobody was expecting such a simple puzzle.

5> (6 marks)

The temperature is noted for 5 consecutive days and it is noted that no two days have the same

temperature. Moreover the product of all the 5 readings is 12. The difference is noted to the

nearest degrees. What were the readings of the temperature?

Ans: -2, -1, 1, 2, 3


4/7

Factors of 12: 4*3,6*2

2*2*3 bt 2 cant b repeated so 2 and to nullify -ve sign 1 is there

so 2 *-1 * 1 * 2 *3 = 12

6> ( 8 marks)

There are five persons in an office in the post of buyer, clerk, footwalker, manager,cashier.

Allen, Benett, Clark, Ewinger, Davis holds the post.

1. Among the 5 two have their lunch time from 11:30- 12:30 and the rest have it in

12:30 1:30

2. Mrs Allen and Mrs Benett are sisters.

3. Cashier and clerk share their lunch among themselves.

4. Two Bachelors share their rooms.

5. Davis and Ewinger doesnt face each other from the day Davis reported Ewinger

to the Manager when he returned from lunch and found out that Ewinger has

already left for lunch before time.

Ans:

I m not sure about the answers bt question was like this

Davis:Buyer

Clark:Cashier

Allen: Manager

Benett:Clerk

Ewinger:Footwalker

Lunch

11:30

12:30

Two

Davis

lunch 12:30 1:30

three

Ewinger( form the 5th point he takes


5/7

( from

the 5th

point he

takes

lunch in

the

earlier

session)

Davis

cant be

manager

Ewinger cant be manager

7> (4marks)

A dice has faces 1 against 6, 3 against 5 and 2 against 4 always. How many such combinations

of faces are possible in a dice?

Ans

24

keeping 1 and 6 fixed, we can have two combinations of 6 and 3, and two of 2 and 4 that means

four. And interchanging 1 and 6 we can have two more combinations that means with one pair 8

combinations are there : 4*2=8. Similarly with other two also 8 combos. So in all 8*3=24 combos

are possible.

8> (4 marks)

A boys age is 5 times as old as his sister. His fathers age is twice to that of his mother who is

five times as old as the boy. The sum of all of them equals to that of his grandmother who is

celeberating his 81st birthday. How old is the boy?

Ans:

5 years old

let boys age b x


6/7

sisters = x/5

mothers=5x

fatthers=2(5x)

grandmothers=81

81=x/5+x+5x+10x

81*5 = x+5x+ 25x +50x

405 = 81x

x= 405/81

x=5

so boys age is 5 years

9> (6 marks)

It was something like 4persons take part in a race and got different ranks.what weretheir ranks:

John, black, Wee, Anthony

Conditions were given like

1. If John stood first then wee cant be on 4th position and Anthony at 2nd postion.

2. Similarly 4 5 conditions were given

10> (8 marks)

An easy question with 4 subparts

A painter has 7 paintings and he follow certain rules while exhibiting the paintings:

Never places x and y in the same exhibit

If y is there z is also there

U is there if and if only w is there


7/7

Following these constraints 4 questions were asked based on the possible combinations in the

exhibit

After the puzzle round half an hours general english test was there . It was very easy having 45

questions

Result was anounced the same day

Next day in the morning I had my intrview . It was very general hr round .Two persons were there

asking general qua\estions.

Questions of intrvw:

1. what is the difference u faced while working in a team during ur training? Dont u think

more options and suggestions mean confusion.

2. What if a person in ur team is always talking against u in all matters without listening to ur

part?(leave it to team leader)

3. Why 5th gear is provided in new cars?(for speed)

4. My dad was frm army.So they asked wat u like abt army.(uniform, respect, discipline)

5. What all places have u been during the transfers and how did that affect u in ur life and y

did u think so.( adjustable and adaptable)

6. They gave me one sequence of numbers and without giving much time asked me the

approach I was following to solve that. I was nt able to solve it bt I explained d approach

to them.

7. Asked my hobbies .My toughest time in whole life an happiest moment.

8. Questions u want to ask from us.

infosys exam on 15th may 2005

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