In 3x5, if x is a digit such that 3x5 is divisible by 3, the sum of all possible values of x is:

Type: MCQ • Marks: 1

A. 12

B. 18

C. 15

D. 9

Explanation

Sum = 3 + x + 5 = 8 + x. Divisible by 3 if x = 1, 4, 7. Sum of values = 1 + 4 + 7 = 12.

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Class 7th Ganita Prakash 1

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