Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Mixture Problems
A mixture of 40 litres of milk and water contains 10% of water. How much of water must be added to make the water 20% in the new mixture?
1
7 litres
2
6 litres
3
5 litres
4
More than one of the above
5
None of the above