Multiple choice

If any number is divided by 91, the remainder will be 7. If the number is divided by 7, the remainder will be?

  1. 1

  2. 2

  3. 0

  4. 3
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

If a number N divided by 91 leaves remainder 7, then N = 91k + 7 for some integer k. Since 91 is a multiple of 7 (91 = 7 × 13), N = 7(13k + 1), meaning N is exactly divisible by 7. Therefore, the remainder when divided by 7 is 0.

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