Multiple choice general knowledge math & puzzles

Nate has stamps from 3 countries (A, B and C). He has 4 more stamps from country A than he has from country C. And he has 6 more stamps from country A then he has from country B. If Nate has 20 stamps in total, how many stamps does he have from country C?

  1. 4

  2. 5

  3. 6

  4. 9

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

Let C = x. Then A = x + 4. B = A - 6 = (x + 4) - 6 = x - 2. Total: x + (x + 4) + (x - 2) = 20. 3x + 2 = 20 -> 3x = 18 -> x = 6.