Respuesta :
Answer:
40 minutes.
Step-by-step explanation:
Bilal's speed is 80/64 = 5/4 times Ali's speed.
So, by proportion, Bilal will take 50 / 5/4 minutes to drive the course.
50 / 5/4
= 50 * 4/5
= 200/5
= 40 minutes.
Answer:
The time taken by Bilal is: 40 minutes.
Step-by-step explanation:
It is given that:
Ali and Bilal drove the same distance.
It is given that:
The average speed of Ali is: 64 miles per hour.
The time taken by Ali to drive the course is: 50 minutes.
We know that:
1 hour=60 minutes
i.e.
1 minutes=1/60 hour
i.e.
50 minutes= 5/6 hour
We know that:
[tex]Speed=\dfrac{Distance}{Time}[/tex]
i.e.
[tex]Distance=Speed\times Time[/tex]
i.e.
Distance traveled by Ali is:
[tex]Distance=64\times \dfrac{5}{6}\\\\\\Distance=\dfrac{160}{3}\ miles[/tex]
Now, the time taken by Bilal is:
[tex]Time=\dfrac{Distance}{Speed}\\\\i.e.\\\\Time=\dfrac{\dfrac{160}{3}}{80}\\\\i.e.\\\\Time=\dfrac{160}{80\times 3}\\\\i.e.\\\\Time=\dfrac{2}{3}\ hour[/tex]
which in minutes is given by:
[tex]=\dfrac{2}{3}\times 60\\\\\\=40\ minutes[/tex]
