Answer: \(16\dfrac{1}{4}\text{ hours}\)
Step-by-step explanation:
Given : The number of hours you did study on Monday = \(5\dfrac{1}{2}\text{ hours}\)
The number of hours you did study on Wednesday = \(6\dfrac{1}{4}\text{ hours}\)
The number of hours you did study on Friday = \(4\dfrac{1}{2}\text{ hours}\)
Then the total hours you study is given by :-
\(5\dfrac{1}{2}+6\dfrac{1}{4}+4\dfrac{1}{2}\\\\=\dfrac{11}{2}+\dfrac{25}{4}+\dfrac{9}{2}\\\\=\dfrac{22+25+18}{4}\\\\=\dfrac{65}{4}=16\dfrac{1}{4}\)
Hence, the total hours you study in last week = \(16\dfrac{1}{4}\text{ hours}\)
