exam Maths Puzzle Numerical Ability

find the area of the space enclosed by two concentric circles of radii 15cm & 13cm.

Read Solution (Total 0)

exam Other Question

if I need to solve for x how would I work this one out?

-2 (6x - 8) = -20 + (2)(4) A boat moves 9 kilometers upstream in the same amount of time it moves 16 kilometers downstream. If the rate of the current is 6 kilometers per hour, find the rate of the boat still in the water.