Question

If 84 × 13 = 8 and 37 × 13 = 6 then 56 × 22 = ______
1. 7
2. 9
3. 6
4. 8

Answer 1

Correct Answer - Option 1 : 7

The logic follows here is:

(Sum of the digits of the first number) - (sum of the digits of the second number) = Third number.

i) 8 + 4 = 12

1 + 3 = 4

12 – 4 = 8

ii) 3 + 7 = 10

1 + 3 = 4

10 – 4 = 6

Similarly,

5 + 6 = 11

2 + 2 = 4

11 – 4 = 7 

Hence, the correct answer is "7".