A) 25 L
B) 28 L
C) 30 L
D) 35 L
Correct Answer: C
Solution :
[c] Total cost price \[=\left( 40\times \frac{7}{2} \right)=\text{Rs}.\,\,140\] Cost per litre = Rs. 2 Total quantity \[=\frac{140}{2}=70\,L\] Water to be added \[=70-40=30\,L\] |
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