Question
If the number 653 `xy` is divisible by 90, then (`x`+ y) = ?
Answer: Option C
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90 = 10 x 9
Clearly, 653`xy`is divisible by 10, so y = 0.
Now , 653`x`0 is divisible by 9. So,(6 + 5 + 3 +`x`+ 0) = (14 + `x`) is divisible by 9. So, `x` = 4.
Hence, (`x` + y) = (4 + 0) = 4
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