A) 70 litres
B) 72 litres
C) 78 litres
D) 80 litres
Correct Answer: D
Solution :
The amount of water that must be added \[=\left( \frac{50-10}{100-50} \right)\times 100\,\,litres\] \[=\frac{40}{50}\times 100\,\,litres\] \[=80\,\,litres\]You need to login to perform this action.
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