Question

Mary completes reading $2$ books in one week. She takes $5$ hours to complete one book. How many hours does she spend reading in $4$ weeks?

• A. $8h$
• B. $5h$
• C. $4h$
• D. $40h$

Answer 1

The correct option is D $40h$

Number of books finished in one week $=2$
Number of weeks Mary reads for $=4$ weeks
Total number of books read = number of books finished in one week $\times$ number of weeks
$=2\times 4=8$ books
Number of hours taken to finish one book $=5h$
Number of hours to finish $8$ books = number of hours taken to finish one book $\times$ 8
$=8\times 5=40h$