A computer takes 50 nanoseconds to do an addition. How many additions can it do in 1 second?

Solution (By Examveda Team)

Let's break down this problem step by step to find the answer:

First, we need to understand the units: nanoseconds and seconds.

We know that 1 second is equal to 1,000,000,000 nanoseconds (1 billion nanoseconds).
So, 1 second = 1,000,000,000 nanoseconds.

The computer takes 50 nanoseconds for one addition.

To find out how many additions it can do in 1 second, we need to divide the total number of nanoseconds in a second by the time it takes for one addition.

That is, Number of additions = Total nanoseconds in a second / Nanoseconds per addition.

Number of additions = 1,000,000,000 / 50

Number of additions = 20,000,000,000

20,000,000,000 is equal to 20 billion.

Therefore, the computer can do 20 billion additions in 1 second.

So, the correct answer is Option C: 20 billion.