The regular price for a T-shirt is $\$ 25$ and the regular price for a pair of jeans is $\$ 75$. If the T-shirt is sold at a $30 \%$ discount and the jeans are sold at a $10 \%$ discount, then the total discount is
(A) $\$ 15$
(B) $\$ 20$
(C) $\$ 30$
(D) $\$ 36$
(E) $\$ 40$
The discount on the T-shirt is $30 \%$ of $\$ 25$, or $0.3 \times \$ 25=\$ 7.50$.

The discount on the jeans is $10 \%$ of $\$ 75$, or $0.1 \times \$ 75=\$ 7.50$.

So the total discount is $\$ 7.50+\$ 7.50=\$ 15$.

ANSWER: (A)