Answer :
The correct option is (b).
Chike's journey took 4.5 hours at 80 km/hour, making the correct answer (b) 4¹/2 hours.
To find out how long Chike's journey took, you can use the formula:
Time (hours) = Distance (km) / Speed (km/hour)
In this case, Chike traveled 360 km at an average speed of 80 km/hour. Plug these values into the formula:
Time (hours) = 360 km / 80 km/hour
Now, calculate the time:
Time (hours) = 4.5 hours
To convert this to minutes, multiply by 60 since there are 60 minutes in an hour:
Time (minutes) = 4.5 hours * 60 minutes/hour = 270 minutes
Now, you want to express this time in hours and minutes, so divide 270 minutes by 60 to separate it into hours and minutes:
270 minutes / 60 minutes/hour = 4 hours with a remainder of 30 minutes
So, Chike's journey took 4 hours and 30 minutes.
Now, let's see which answer choice matches this result:
(a) 1 hour 20 minutes - Incorrect
(b) 4¹/2 hours - This is equivalent to 4.5 hours, which is the correct answer.
(c) 6 hours - Incorrect
(d) 45 hours - Incorrect
(e) 48 hours - Incorrect
The correct answer is 4¹/2 hours, which is equivalent to 4.5 hours.
The complete question is here:
Chike travelled 360km at an average speed of 80km an hour. How long did the journey take him?
(a) 1 hour 20 minutes
(b) 4¹/2 hours
(c) 6 hours
(d) 45 hours
(e) 48 hours
