Question
If 56 # 93 = 57 and 78 # 46 = 80, then 69 # 53 =
?Solution
3rd number: Sum of product of 1st and 2nd digit of 1st number and product of 1st and 2nd digits of 2nd number. 56 # 93 → {(5 x 6) + (9 x 3)} = {30 + 27} = 57 78 # 46 → {(7 x 8) + (4 x 6)} = {56 + 24} = 80 Similarly, 69 # 53 → {(6 x 9) + (5 x 3)} = {54 + 15} = 69
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