Question

The average speed of a train to cover a distance from P to Q is found to be 90 km/h, without considering the stoppages. If the
stoppages are included, the average speed of the train is found to be 72 km/h for the same journey. Find the stoppage time
(in minutes) per hour.

12 minutes
18 minutes
10 minutes
120 minutes

Answer 1

d) 120 is correct answer

Answer 2

Answer:

12min.

Step-by-step explanation:

Due to stoppages the train travels (45−36)=9 km less in 1 hour and the time taken to travel 9 km is the time taken at the stoppages.

∴ Time taken to cover 9 km at 45 km/hr =

$\frac{9}{45}*60 =12 mins$

The overall distance the object covers in a given amount of time is its average speed. A scalar value represents the average speed. It has no direction and is indicated by the magnitude. Please share the formula for calculating average speed as well as instances with solutions.

Calculating the ratio of the body's total distance travelled to the time needed to complete that distance yields the average speed formula.

The overall distance travelled by an object during a specific period of time can be used to determine its average speed.

The mean value of a body's speed over a period of time is its average speed.

As stated in the average speed equation:  Total Distance traveled/Total Time taken

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