一杯浓度为10%的糖水,若再加入25克水,糖水的浓度为6%,这杯糖水含糖多少克?
超急
人气:185 ℃ 时间:2019-11-09 04:38:52
解答
设这杯糖水x克.
10%*x=(x+25)*6%
4%*x=25*6%
x=37.5
这杯糖水含糖37.5*10%=3.75克
推荐
- 有浓度为25%的糖水如果再加入20克水则浓度为15%,原来这种糖水中含糖多少千克?
- 一杯糖水,其中糖占25%,再放入15克水后,糖占20%,这杯糖水中糖有多少克?
- 在20%的盐水中加入10千克水,浓度为15%.再加入多少千克盐,浓度为25%?
- 一杯糖水,糖占25%,再放入15克水后,糖只占20%,这杯水中糖有几克?(答案)
- 在浓度为25%的糖水,如果再加入20克水,则浓度为15%,原来糖水中含糖多少克?
- The gap's being closed easily enables people to enjoy...
- 英语:so far this year we () a fall in house prices by between 3 and 5 percent
- I hate those people who like to take sth out of nothing.
猜你喜欢