Question

两袋球共82个,一袋全是白球,另一袋有红黄蓝三种球,已知红球比黄球少1/4,比蓝球少5/8,蓝球比白球少几个

Answer 1

红球比黄球少1/4,比蓝球少5/8

红：黄：蓝=3:4:8

设：红球3x个,则黄球4x个,蓝球8x个,白球y个

15x+y=82

x,y∈N

x=1 x=2 x=3 x=4 x=5

y=67 y=52 y=37 y=22 y=7

8x