Question

A students rectangular desk is 30 inchrd long and 18 inches wide. The teachers desk is similar to the students desk anf has a length of 50 inches. What is the width of the teachers desk

Answer 1

width of teacher's desk is 30 inches

Since the desks are similar then the ratios of corresponding sides are equal

let the width of teacher's desk be w, then

$\frac{30}{50}$ = $\frac{18}{w}$ ( cross- multiply )

30w = 900 ( divide both sides by 30 )

w = 30