# TCS Papers: Sample Questions 88 - 90 of 502

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## Question number: 88

### Write in Short

Find out the largest prime number that can be stored in 8 bit memory.

### Explanation

• = 256, prime no less than 256 i. e. 251
• In a memory user can store data from 0 to
• Where, n = total number of bits
• Here, in 8 bit memory, user can store data between 0 to
• = 256, i. e. user can store data between 0 to 255.
• So, maximum possible value that can be stored in 8 bit memory is 255.
• We are asked to find the largest prime number, which will be 251, as 255 is not a prime number.
• Prime number: A number which is divisible by itself and one is known as prime number.

## Question number: 89

### Write in Short

If Rs. 1260 is divided between A, B and C in the ratio 2: 3: 4, what is C’s share?

### Explanation

Rs. 1260 is divided between A, B and C in ratio 2: 3: 4.

Let A got 2x, B got 3x and C got 4x.

Total amount is

C’s share =

C’s share = 4 140

C’s share = 560 Rs.

So, C’s share is Rs. 560

## Question number: 90

### Write in Short

Interchange 1st & 2nd, 3rd & 4th, and so on, of the words “UNIMPRESSIVE” & then find 10th letter a) to the left b) from the left

### Explanation

• We have to interchange the position of letters of word UNIMPRESSIVE in a pair. Like, change 1st and 2nd letter, change 3rd and 4th letter, and so on.
• By interchanging letters the word which we will get is NUMIRPSEISEV
• We are asked to find the 10th letter in this word from right and left.

a) from right (to the left):

10th letter will be M

b) from left (to the right):

• 10th letter will be S