A train travels 60km in M minutes. If its average speed is 400km per hour, find the value of M
Answer Details
The average speed of the train is given as 400km/hr. This means that in one hour, the train travels 400km. We can convert this to km/minute by dividing by 60 (the number of minutes in an hour). Therefore, the speed of the train in km/minute is:
400km/hr ÷ 60 = 6.67km/min (rounded to two decimal places)
We are given that the train travels 60km in M minutes. We can use the formula:
speed = distance/time
to find the value of M. Rearranging the formula gives:
time = distance/speed
Substituting the given values, we get:
M = 60km ÷ 6.67km/min
M = 9 minutes (rounded to the nearest minute)
Therefore, the value of M is 9.