A box contains only marbles. If 1/4 of the marbles were removed, the box would be filled to 1/2 of its capacity. If instead 100 marbles were added, the box would be full. How many marbles are in the box?
সঠিক উত্তর: Option B
A.T.Q,
x-1/4x = 1/2
x = 2/3
Remaining = (1-2/3) = 1/3
Again,
1/3 part =100
1 part =300
2/3 part = 200