Question

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?​

Answer 1

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 = $\frac{462}{\frac{11}{2}}=\frac{462\times2}{11}=42\times2=84$

Therefore, New speed to cover 462 km in 30 minute less is 84 km per hr.