12) I travelled from Kolhapur to Nashik in 6 hours at the speed of 77 kmph. By how much should I have
increased my speed in order to reach half an hour earlier?
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Answer:
New speed to cover 462 km in 30 minute less is 84 km per hr.
Step-by-step explanation:
Given:
Time taken from Kolhapur to Nashik = 6 hr
Speed = 77 km per h
To find: Speed if the time taken is 30 minute less.
Distance between Kolhapur and Nashik = Speed × Time = 77 × 6 = 462 km
New time to cover 462 km = 6 hr - 30min = 6 - 1/2 = 11/2 hr
New speed =
Therefore, New speed to cover 462 km in 30 minute less is 84 km per hr.
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