Correct option is C


Find the value of x in the proportion 69 : 23 :: 63 : x.
Two pipes, P and Q, together can fill a tank in 5 hours. If pipe P alone can fill the tank in 10 hours, then how much time (in hours) will pipe Q alone take to fill the tank?
The surface area of a cube is 480 Find its volume.
Find the value of x in the proportion 69 : 23 :: 63 : x.
Two pipes, P and Q, together can fill a tank in 5 hours. If pipe P alone can fill the tank in 10 hours, then how much time (in hours) will pipe Q alone take to fill the tank?
The surface area of a cube is 480 Find its volume.