Question

If a Class has total number of 30 students and 20% play the piano, 30% play the drums 10%play the violin and 40% play guitar how many students play the drums?

Answer 1

9

Explanation:

(% of drums÷100%) x 30

(30÷100) x 30

0.3 x 9

9

Answer 2

30 * 0.20 = 6
30 * 0.30 = 9
30 * 0.10 = 3
30 * 0.40 = 12

9 students play the drums