Multiple choice general knowledge math & puzzles

Which number should replace the question mark? 17 8 5 5 13 7 5 4 6 12 6 3 10 6 4 ?

  1. 4

  2. 5

  3. 6

  4. 7

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The pattern in each row is (first number + second number) / third number = fourth number. Row 1: (17+8)/5 = 25/5 = 5. Row 2: (13+7)/5 = 20/5 = 4. Row 3: (6+12)/6 = 18/6 = 3. Row 4: (10+6)/4 = 16/4 = 4. This consistent mathematical operation yields answer choice A.