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Q.
If x and y are the two digits of the number 653xy such that this number is divisible by 80, then x+y is equal to ?
A.
5
B.
4
C.
3
D.
2
View Answer
Correct choice: D
Explanation:
Since 653xy is divisible by 5 as well as 2, so y = 0. Now, 653x0 must be divisible by 8. So, 3x0 must be divisible by 8. This happens when x = 2 x + y = (2 + 0) = 2.
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