A water reservoir is 1/5th full and requires 20 liters more to make it 3/5th full. What is the capacity of the reservoir ( in liters)?
সমাধান
সঠিক উত্তর: Option D
Let full tank be X
Then, A/Q,
3X/5 - X/5 = 20
or, (3X - X) / 5 = 20
or, 2X/5 = 20
or, X = 20*5/2 = 100/2 = 50