## Infosys Practice Simple Puzzles

Dear Reader, below are three simple straightforward puzzles to practice for infosys and other similar papers. Hope this helps your preparation.

Question 1

In a conference hall, 56 members are seated by the following arrangements. After the first women, one man seated. After the second women, two men are seated. After the third women, three men are seated and so on. How many numbers of men are seated in the second half of the arrangements?

a) 27 b) 25 c) 24 d) 26

Solution :

The seating arrangement will be

From the above diagram, we can see that the second half arrangement is :
M M M M M M M W M M M M M M M M W M M M M M M M M M W M
Here, there are 25 men in the above arrangement.

Question 2

In a bank, there are two counters namely counter1 and counter2. They will call the customers by a token number. If counter1 calls the token numbers from 40 in descending order and the counter2 calls only the token numbers which are prime numbers in ascending order. What token number will they call out at the same time if they were calling in the same speed?

a) 29 b) 31 c) 23 d) never call out the same number

Answer : d) never call out the same number

Solution :

Both counters will call in the following manner

So, both will never call out the same token number at a time.

Question 3

If the numbers from 1 to 100 which are exactly divisible by 4 and 6 are arranged in descending order, maximum number being on the top, which would come at the seventh place from the top?

a) 24 b) 12 c) 36 d) 18

Solution :

From 1 to 100, the number which is divisible by 4 are 100, 96, 92, 88, 84, 80, 76, 72, 68, 64, 60, 56, 52, 48, 44, 40, 36, 32, 28, 24, 20, 16, 12, 8 and 4.
From 1 to 100, the numbers which is divisible by 6 are 96, 90, 84, 78, 72, 66, 60, 54, 48, 42, 36, 30, 24, 18, 12 and 6.
Therefore, the numbers which are divisible by 4 and 6 are 96, 84, 72, 60, 48, 36, 24 and 12.
Hence, the seventh place from the top is 24.

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