Answer:
Frank spent [tex]\frac{3}{2}[/tex] hours times for studying as John.
Step-by-step explanation:
Given that,
John spent time in studying = [tex]3\frac{1}{4}[/tex] hours.
Frank spent time in studying = [tex]4\frac{7}{8}[/tex] hours.
To find: Frank spent how many times the amount of hours studying as John?
So, Let the frank spent [tex]x[/tex] (in hours) times of hours studying as John.
According to Question,
time taken by Frank for studying = [tex]x\times[/tex] time taken by John for studying
[tex]4\frac{7}{8}=x\times 3\frac{1}{4}[/tex]
[tex]\frac{39}{8}=x\times \frac{13}{4}[/tex]
[tex]x=\frac{\frac{39}{8} }{\frac{13}{4} }=\frac{39}{8} \times\frac{4}{13}[/tex]
[tex]x=\frac{3}{2}[/tex] hours.
Therefore, Frank spent [tex]\frac{3}{2}[/tex] hours times for studying as John.