Question

If 36x52y8 is divisible by 9, then x+y is * A.2 B.3 C.4 D.5

Answer 1

SOLUTION

TO CHOOSE THE CORRECT OPTION

If 36x52y8 is divisible by 9, then x+y is

A.2

B.3

C.4

D.5

CONCEPT TO BE IMPLEMENTED

A number is divisible by 9 if the sum of the digits is divisible by 9

EVALUATION

Here it is given that 36x52y8 is divisible by 9

We know that A number is divisible by 9 if the sum of the digits is divisible by 9

Now sum of the digits

= 3 + 6 + x + 5 + 2 + y + 8

= 24 + x + y

Now 24 + x + y is divisible by 9

This is true when x + y = 3

FINAL ANSWER

Hence the correct option is B. 3

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