ashok covered a certain distance at a certain speed. if his speed was 20% more, he would take 10 minutes less to cover the same distance. find the time he takes to cover the distance.
Answers
Let distance =d meter,
normal speed =s meter/minute
d/s−d(120s/100)=10
d/s−d(6s/5)=10
d/s−5d/6s=10
d/6s=10
d/s=60
Time =d/s = 60 minutes = 1 hour
HOPE IT HELPS
Answer:
the time he takes to cover the distance is Time =d/s equals 1 hour and 60 minutes.
Step-by-step explanation:
Step : 1 If the distance is d metres and the typical speed is s metres per minute, then,
d/s = 10 d/s and d/s (6s/5) = 10 d/s, 5d/6s = 10 d/6s = 10 d/s, etc.
Time =d/s equals 1 hour and 60 minutes.
Step : 2 Distance 250 kilometres were travelled in the 20 minutes it took. Formulation: The train travels at 75 km/h, hence it takes an hour (60 minutes) to travel 75 kilometres. ∴ 250 kilometres may be travelled in 3 hours and 20 minutes. Distance x time equals speed. Speed divided by time equals distance.
Step : 3 A train may travel a distance in 40 minutes less when its speed is raised by 20 kilometres per hour. If the train's speed is reduced by 30 km/h, it will take 70 minutes longer to go the same distance. The amount of time needed to travel must be cut by 20% compared to what it is presently. The revised time (T') will thus be T - 20%T. Final Response: As a result, option (C) will require a 25% speed increase.
To learn more about similar questions visit:
https://brainly.in/question/1212683?referrer=searchResults
https://brainly.in/question/13434952?referrer=searchResults
#SPJ3