That would be correct because if x times x =16 than that means that the square root of 16 is 4
The answer maybe C ) cylinder =200pie and cone = 80pie
Work in fractions of the pool the pumps can drain per hour:-
1/6 + 1/4 = 1/x where x is the time to drain the pool by the 2 pumps together
4x + 6x = 24
10x = 24
x = 2.4 hours <===== answer
