Question

**If 64 x 52 = 17, 48 x 56 = 23 and 74 x 35 = 19, then 84 x 37 = ?**

A. 20

B. 22

C. 28

D. 30

**Answer: B. 22**

**Solution:**

As, 64 x 52

48 x 56 (4 + 8) + (5 + 6) = 23

and 74 x 35 (7 + 4) + (3 + 5) = 19

Similarly, **84 x 37 (8 + 4) + (3 + 7) = 22**

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