Question

If one apartment requires 36 square yards of carpeting, how many square yards of carpeting do 25 identical apartments require? 

A. 936 square yards   B. 27 square yards   C. 61 square yards   D. 900 square yards

Answer 1

Multiple the known quantity for one apartment, by the number of apartments:


`Carpet_(total) = (carpet)/(apartment) * n_(apartments)`

`Carpet_(total) = 36(yd^(2))/(apartment) * 25apartments`

`Carpet_(total) = 900yd^(2)`

Answer 2

Hello!

You can make a proportion


`(1)/(36) = (25)/(x)`

Cross multiply

36 × 25 = 900

900 ÷ 1 = 900

Answer ⇒ D. 900 square yards