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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