Without any stoppage, a person travels a certain distance at an 2 speed of 42 km/h, and with stoppages he covers the same distance at an 2 speed of 28 km/h. How many minutes per hour does he stop?
A) 15 minutes
B) 20 minutes
C) 18 minutes
D) 22 minutes
Answers
Answered by
20
heya !
Question -
Without any stoppage, a person travels a certain distance at an average speed of 42 km/h, and with stoppages he covers the same distance at an average speed of 28 km/h. How many minutes per hour does he stop?
A) 15 minutes
B) 20 minutes
C) 18 minutes
D) 22 minutes
Answer -
Option B "20 minutes "
Let the total distance to be covered is 84 kms.
Time taken to cover the distance without stoppage = 84/42 hrs = 2 hrs
Time taken to cover the distance with stoppage = 84/28 = 3 hrs.
Therefore , he takes 60 minutes to cover the same distance with stoppage.
Therefore, in 1 hour he stops for 20 minutes.
hope this helps you !
Question -
Without any stoppage, a person travels a certain distance at an average speed of 42 km/h, and with stoppages he covers the same distance at an average speed of 28 km/h. How many minutes per hour does he stop?
A) 15 minutes
B) 20 minutes
C) 18 minutes
D) 22 minutes
Answer -
Option B "20 minutes "
Let the total distance to be covered is 84 kms.
Time taken to cover the distance without stoppage = 84/42 hrs = 2 hrs
Time taken to cover the distance with stoppage = 84/28 = 3 hrs.
Therefore , he takes 60 minutes to cover the same distance with stoppage.
Therefore, in 1 hour he stops for 20 minutes.
hope this helps you !
Answered by
6
Answer:
20minute
Step-by-step explanation:
42:28
42-28=14
time=14/42=1/3=60/3=20minute
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