Question

A chemist has 30% and 60% solutions of acid available. How many liter of 30% solution should be used to obtain 82 litres of 32% acid solution? Give your answer with 1 decimal place (e.g. 4.2).​

Answer 1

Ответ:

30%+60%=90%

92-82=1% litres

32-1%=30 solution