Find digit A if 2 A 1 is divisible by 9.

Type: MCQ • Marks: 1

A. 4

B. 6

C. 5

D. 7

Explanation

Sum of digits = 2 + A + 1 = 3 + A. For divisibility by 9, 3 + A = 9 => A = 6.

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Class 7th Ganita Prakash 1

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