Question

Harry used his mobile phone to play games, watch a movie and to hear songs. He played games for $1\frac{1}{4}$ hours , watch movie for $2\frac{1}{2}$ hours and heared songs for $\frac{3}{4}$ hours. How much time did he spent on his mobile phone?

• A. $\frac{9}{2}$ hours
• B. $5$ hours
• C. $\frac{7}{2}$ hours
• D. $\frac{11}{2}$ hours

Answer 1

The correct option is A $\frac{9}{2}$ hours

Time spent on mobile to play games
= $1\frac{1}{4}$ hours
= $\frac{5}{4}$ hours,

Time spent on mobile to watch movie
= $2\frac{1}{2}$ hours
=$\frac{5}{2}$ hours,

Time spent on mobile to hear songs
= $\frac{3}{4}$ hours.

So, total time spent on mobile phone = $\frac{5}{4}+\frac{3}{4}+\frac{5}{2}$
= $(\frac{5}{4}+\frac{3}{4})+\frac{5}{2}$

= $\frac{8}{4}+\frac{5}{2}$

= $\frac{2}{1}+\frac{5}{2}$

= $\frac{2\times 2}{1\times 2}+\frac{5}{2}$

= $\frac{4}{2}+\frac{5}{2}$ = $\frac{9}{2}$ hours