Why will the volume remain same in both Qty A and B i.e. 60000?
I don’t know how you arrived at 60,000, but I think the answer might be B, i.e The quantity in column B is greater
It’s not asking about the volume of water, it’s asking about the height of water
Let’s say the total volume of water = 6000
Then height in A = \frac{6000}{30 * 50} = 4
Whereas height in B = \frac{6000}{30 * 40} = 5
Thus, quantity B is greater