XDF补充教材T553

WONDERLAND2004

请教此D/S题的中文意思？谢谢。
If P and R were solutions of water and ammonia and if solution 5 consisted of 2 parts of P and 3 parts of R. What percent of solution S was ammonia?
1). Solution P contained 10% ammonia and solution R contained 3 percent ammonia.

2). There was a total of 10 liters of solution S.

horsefish

如果P和R是水和氨的溶液并且如果溶液S是2份P和3份R组成. 问多少比例的S是氨?(我假设你题中的5是S)

1. 溶液P含10%氨,溶液R含3%氨

2. 总共10liters 的S溶液