state gov Punjab Police SI Mock Test 2023 Quantitative Aptitude Mixture Problems To Make a Mixture from Two Mixtures
A 27 quartz capacity car radiator is filled with 18% alcohol solution. How many quartz be drained and then be replaced by a 90% alcohol solution for resulting solution to contain 42% alcohol?
1
19 quartz
2
9 quartz
3
7.2 quartz
4
14 quartz