234. In a certain game, a large container is filled with red, yellow, green, and bule beads worth, respectively, 7, 5, 3, and 2 points each. A number of beads are then removed from the container, If the product of the point values of the removed beads id 147,000, how many red beads were removed?
5 4 3 2 0
Key is 2.
完全做不出来,题也看不懂。好像讲的是在那个容器里有4种颜色的珠子,每种代表不同的值7,5,3,2。要一共移出值的合为147,000的珠子,会移出多少红色的珠子?请教各位应该怎么解?
147000=7^2*3*2^3*5^3
so there are 2 beads with 7 points
我实在太菜了,请问楼上的^代表什么意思,如果*代表乘的话?
7^2*3*2^3*5^3的意义是什么呀?
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