Laura earns $\$ 10 /$ hour and works 8 hours per day for 10 days. She first spends $25 \%$ of her pay on food and clothing, and then pays $\$ 350$ in rent. How much of her pay does she have left?
(A) $\$ 275$
(B) $\$ 200$
(C) $\$ 350$
(D) $\$ 250$
(E) $\$ 300$
Laura earns $\$ 10 /$ hour and works 8 hours per day for 10 days. She first spends $25 \%$ of her pay on food and clothing, and then pays $\$ 350$ in rent. How much of her pay does she have left?
(A) $\$ 275$
(B) $\$ 200$
(C) $\$ 350$
(D) $\$ 250$
(E) $\$ 300$

## Solution

In 10 days, Laura works $8 \times 10=80$ hours. So in these 10 days, she earns $80 \times \$ 10=\$ 800$. Since $25 \%=\frac{1}{4}$, she spends $\frac{1}{4} \times \$ 800=\$ 200$ on food and clothing, leaving her with $\$ 600$.

If she spends $\$ 350$ on rent, she will then have $\$ 600$ - $\$ 350$ or $\$ 250$ left.

ANSWER: (D)