大家好,
想请问p270, 14题
Of 40 pairs of socks in a drawer, x pairs are solid white, y pairs are soild
gray, and more than 19 of the pairs are striped,
Quantity A QuantityB
x - y The number of striped pairs of sockets in the drawer
请问 y 可以为 0 吗?
因为这题答案是 A < B, 但是y=0, 那 A 可以等于B
感谢