A) 2-5 litres
B) 5 litres
C) 6 litres
D) 5-5 litres
Correct Answer: B
Solution :
Water should be added \[=\frac{(20-10)}{(100-20)}\times 40\] \[=\frac{10}{80}\times 40\] \[=5\,\,litres\]You need to login to perform this action.
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