Answer:
2 hours and 40 minutes
Step-by-step explanation:
we need to find how much time it takes to complete the race if in two hours holden completed 3/4, the information is this:
hours race
2 3/4
x 1
where x is the unknown hours that takes to complete 1 race.
Using rule of three:
we multiply the cross quantities (2 by 1) and then divide by 3/4:
[tex]x=\frac{2*1}{\frac{3}{4} } =\frac{4*2}{3} =\frac{8}{3} =2.666 hours[/tex]
this is 2 hours plus 0.666 of hour.
0.666 of hour is equal to [tex]\frac{2}{3}[/tex] of hour, and since one hour has 60 minutes:
[tex]60(\frac{2}{3} )=40min[/tex]
the total time is 2 hours and 40 minutes.
