spendlisteningSolution
Note: we need to find the time he will be using for listenng to music and playing Tennis and then subtract them
[tex]\begin{gathered} 1)\text{Time use for listening to music : } \\ \frac{12}{100}\times\text{ 24 = }\frac{288}{100}\text{ = 2.88hours} \\ \\ 2)\text{Time spendth in playing Tennis} \\ \frac{10}{100}\times24\text{ = }\frac{240}{100}=\text{ 2.4hours} \\ \\ \text{Difference in time = }2.88\text{ - 2.4} \\ \text{ = 0.48} \\ \text{Answer = 0.48 hour.} \end{gathered}[/tex]