Question

A person who spends 66×2/3% of his income is able to save $1200 per month. His monthly expenses are

Answer 1

$fraction \: of \: 66 \times \frac{2}{3} \% \: is \: \frac{2}{3} \\ let \: total \: income \: = 3x \\ money \: spent (expenses)\: = 2x \\ savings = 1200 \\ total \: income = expenses + savings \\ 3x = 2x + 1200 \\ x = 1200 \\ then \: expenses \: = 2 \times 1200 = 2400$