Question

Observe the patterns given below and identify which number replaces the question mark?

• A. 7
• B. 10
• C. 13
• D. 15

Answer 1

The correct option is C 13

If we look closely at each figure,
Step I: 3 + 12 = 15
Step II: 2 + 7 = 9

So, the result of the addition of the numbers in the top two boxes gives the result in the bottom box.

Similarly, following the same pattern, we get:
Step III: 8 + 5 = 13

So the question mark can be replaced by number 13.