# TCS Papers: Sample Questions 88 - 90 of 502

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## Question number: 88

» Aptitude

### 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

» Aptitude

### 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

» Aptitude

### Write in Short

Interchange 1^{st} & 2nd, 3^{rd} & 4th, and so on, of the words “UNIMPRESSIVE” & then find 10^{th} 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 1
^{st}and 2^{nd}letter, change 3^{rd}and 4^{th}letter, and so on. - By interchanging letters the word which we will get is NUMIRPSEISEV
- We are asked to find the 10
^{th}letter in this word from right and left.

a) from right (to the left):

10^{th} letter will be M

b) from left (to the right):

- 10th letter will be S