1.

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

Answer»
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


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