Question on: WAEC Mathematics - 2014
The radii of the base of two cylindrical tins, P and Q are r and 2r respectively. If the water level in p is 10cm high, would be the height of the same quantity of water in Q?
A
2.5cm
B
5.0cm
C
7.5cm
D
20.0cm
Ask EduPadi AI for a detailed answer
Correct Option: A
volume of cylinder = (\pi r^2h)
volume of cylinder p = (\pi r^2 \times 10)
= 10(\pi r^2)
volume of cylinder Q = (\pi (2r)^2 h)
= 4(\pi r^2)h
4(\pi r^2 = 10 \pi r^2 h)
h = (\frac{10}{4} = 4.5cm)
Add your answer
Please share this, thanks!
No responses