ArithmeticQuestion 300 of 550

Which digit A makes the number 37A divisible by 9?

  1. 8
  2. 1
  3. 6
  4. 9
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Correct answer: 8

A number divides by 9 if its digit sum divides by 9. 3 + 7 + A = 10 + A. This is 18 when A = 8.

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Questions last reviewed: 21 October 2026