Civil Service Exam Reviewer · Basic Operations · hard

Which of the following numbers is divisible by both 4 and 9?

  1. 364
  2. 360
  3. 270
  4. 356

Answer

B. 360

Solution

A number divisible by 4 and 9 must be divisible by 36. 360 = 36 × 10. The others fail one of the tests (last two digits divisible by 4; digit sum divisible by 9).

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