Question

有人民币5元一张,2元一张,1元两张,5角一张,2角一张,1角一张.要从中拿出7.6元,可以怎样拿?写出三种方案.

Answer 1

5*1+2*1+0.5*1+0.1*1

5*1+1*2+0.5*1+0.1*1

5*1+2*1+0.5*1+0.2*1然后叫人找吧.