Which characteristics do a rhombus and a rectangle always have in common?

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Find the value of x. round the length to the nearest tenth