A) 120 l
B) 135 l
C) 150 l
D) 180 l
Correct Answer: D
Solution :
[d] Let the capacity of the drum be x liters. \[\therefore \,\,\frac{3x}{4}-\,30=\frac{7x}{12}\] \[\Rightarrow \,\,\,\frac{3x}{4}-\,\frac{7x}{12}=30\] \[\Rightarrow \,\,\,\frac{9x-\,7x}{12}=30\] \[\Rightarrow \,\,\,\frac{x}{6}=30=x=6\times 30=180\,liters\]You need to login to perform this action.
You will be redirected in
3 sec