Question

Speed
:: Time taken in covering 45 km -
hr.
... Total time taken in covering 345 km =
Exercise 11
speed how far could he travel in 7 hours
notorist travelled at a speed of 70 km/hr. At this speed how far could
2. Find the time taken by a bus to travel 280 km at a speed of 80 km/hr.
3. Fypress the following speeds in km/hr.​

Answer 1

Answer:

Correct option is

C

421 hrs

Distance covered in the first 2 hours = (70 x 2) km = 140 km

Distance covered in the next 2 hours = (80 x 2) km = 160 km

Remaining distance = 345 - (140 + 160) = 45 km Now, speed in the fifth hour = 90 km/hr

∴ Time taken to cover 45 km = (9045)hr=21hr

∴ Total time taken = (2+2+21)hr=421hrs