Multiple choice

Choose the numeral pair/group which is different from others.

  1. 39 - 65

  2. 26 - 78

  3. 14 - 42

  4. 91 - 39
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

39 - 65, difference is 26 is a multiple of 13 26 - 78, difference is 52 is a multiple of 13 14 - 42, difference is 28 is a multiple of 7 91 - 39, difference is 52 is a multiple of 13 So, the third option is different.

Keep practicing — related questions