If 50% of (P – Q) = 30% of (P + Q) and Q = x% of P, then the value of x is :

Water flows at the rate of 10 metres per minute from a cylindrical pipe 5 mm in diameter. How long it lake to fill up a conical vessel whose diameter at the base is 30 cm and depth 24 cm ?

What is the value of $(1004)^{2}-(998)^{2} ?$

Which value among $\sqrt[3]{8}, \sqrt[2]{4}, \sqrt[6]{64}$ is greatest?

A copper sphere of diameter 18 cm is drawn into a wire of diameter 4 mm. The length of the wire, in metre, is

The distance travelled by vehicle F on day 2 was approximately what per cent of the distance travelled by it on day 1?

What is the respective ratio between the speeds of vehicle D and vehicle E on day 2?

What was the difference between the speed of vehicle A on day 1 and the speed of vehicle C on the same day?

Which of the following vehicles travelled at the same speed on both the days?

What was the speed of vehicle C on day 2 in terms of metres per second?