Lipika reads a book for `1 frac {3}{4}` hours every day. She reads the entire book in `6` days. How many hours in all were required by her to read the book?

Options

A. `10 frac{1}{2}`
B. `10`
C. `20`
D. `11/2`

Answer

A

Explanation

The number of hours Lipika reads the book in 1 day ` = 1 3/4 hours = 7/4 hours`

`:.`The number of hours Lipika reads the book in 6 days ` = 7/4**6 = 21/2 = 10.5 hours`