engineering recuitment FSSAI Assistant Mock Test 2021 Quantitative Aptitude Mixture Problems To Make a Mixture from Two or More Things
Ratio of gold to copper in a mined ore is 5 : 2. In the first stage of extraction, 25% of ore is wasted in which ratio of gold to copper is 4 : 3. In the second stage of extraction, 30 kg of ore is wasted in which ratio of gold to copper 1 : 5. After second stage, pure quantity of gold is obtained, then what is the final quantity of gold obtained?
1
90 kg
2
60 kg
3
75 kg
4
45 kg