Question

Bobby read a total of 20 books over 2 months. If Bobby has read 90 books so far, how many months has he been with his book club? Solve using unit rates

Answer 1

Step 1

From the question;

$\begin{gathered} Bobby\text{ reads 20 books in 2 months} \\ \end{gathered}$

We are required to find how many months it will take him to read 90 books

Step 2

We will use the ratio below to solve the problem.

$\begin{gathered} \frac{20\text{ books}}{90\text{ books}}=\frac{2months}{x} \\ x=months\text{ to read 90books} \\ x=\frac{90\times2}{20} \\ x=9\text{ months} \end{gathered}$

Answer; It will take Bobby 9months to read 90 booj

$9\text{ months}$