Question

Fai spend $9 on his lunch. This is 30% of the money he had in his wallet. How much money did Fai have in his wallet?

Answer 1

Fai's wallet contained $30.

Explanation:

$9 = 30%

x = 100%

If you cross multiply:

x * 30% = $9 * 100%

0.3x = $9

x = $9/0.3

x = $30