Q. In a sequence of numbers, each number is the sum of the previous two numbers. If the first two numbers are 2 and 3, what is the 6th number in the sequence?

The correct answer is (A) 21.

Explanation:

Let’s solve this step by step:

1) First two numbers are 2 and 3

2) Let’s find each subsequent number:
3rd number: 2 + 3 = 5
4th number: 3 + 5 = 8
5th number: 5 + 8 = 13
6th number: 8 + 13 = 21

3) So the sequence is: 2, 3, 5, 8, 13, 21

4) The 6th number is 21

Therefore, the answer is (A) 21.