state gov Kolkata Police Constable Mock Test 2024 Quantitative Aptitude Mixture Problems To Make a Mixture from Two Mixtures
When a 30% concentration of alcohol is mixed with an 80% concentration of alcohol we get a mixture of 50% concentration of alcohol. In what ratio were these two different concentrations of alcohol mixed?
1
4 : 5
2
3 : 4
3
1 : 3
4
3 : 2