Multiple choice general knowledge math & puzzles

What is the missing number in the square 15 3 7 19 8 11 5 2 7 15 12 4 14 7 14 ___?

  1. 20

  2. 21

  3. 22

  4. 23

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

In this 4x4 grid, the sum of each row is 44: (15+3+7+19=44), (8+11+5+20=44? No). Looking at columns: 15+8+5+14=42, 3+11+2+7=23. The logic is the sum of the first three numbers in a row equals the fourth? 15+3+7=25 (no). 14+7+14=35. If the sum is 56? 35+21=56. 21 is the intended answer.