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Details of Paper - 8 by Infosys conducted by Infosys for job interview.

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**Infosys Sample Test #3**

The bank has lockers of 12 people which are arranged in an array of 3 rows and 4 columns like:

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2. Fifty minutes ago if it was four times as many minutes past three o,clock,how many minutes is it to six o,clock?

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3. If a clock takes 7seconds to strike 7, how long will the same clock take to strike 10?

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Therefore, for 10 seconds there are 9 intervals and time taken is 9*7/6=10 and 1/2 seconds.

4. Three criminals were arrested for shop lifting.

However, when interrogated only one told the truth in both his statements, while the other two each told one true statement and one lie.

The statements were:

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5. Everyday in his business a merchant had to weigh amounts from 1 kg to 121 kgs, to the nearest kg.

What are the minimum number of weight required and how heavy should they be?

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6. A hotel has 10 storeys.Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.

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7. Seven members sat around a table for three days for a conference.

The member,s names were Abhishek, Amol, Ankur, Anurag,Bhuwan ,Vasu and Vikram.

The meetings were chaired by Vikram.

On the first evening members sat around the table alphabetically.

On the following two nights, Vikram arranged the seatings so that he could have Abhishek as near to him as possible and abesent minded Vasu as far away as he could.

On no evening did any person have sitting next to him a person who had previously been his neighbour.

How did Vikram manage to seat everybody to the best advantage on the second and third evenings?

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8. Two trains start from stations A and B spaced 50 kms apart at the same time and speed.

As the trains start, a bird flies from one train towards the other and on reaching the second train, it flies back to the first train.This is repeated till the trains collide.

If the speed of the trains is 25 km/h and that of the bird is 100km/h.

How much did the bird travel till the collision.

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9. Four prisoners escape from a prison.

The prisoners, Mr East, Mr West, Mr South, Mr North head towards different directions after escaping.

The following information of their escape was supplied: The escape routes were The North Road, South Road, East Road and West Road. None of the prisoners took the road which was their namesake. Mr.East did not take the South Road Mr.West did not the South Road. The West Road was not taken by Mr.East What road did each of the prisoners take to make their escape?

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Mr.West took the East Road

Mr.North took the South Road

Mr.South took the West Road.

10. Complete the series:

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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.

**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 readupside down.So on rearranging these digits we get the answer as 10968

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

**Ans:** 10 1/2 seconds.

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