Question

A bus covers a certain distance in 3 hours 20 minutes at an average speed of 45 km/h. How
long will it take to cover the same distance at a speed of 36 km/h?
make 240 tonnes of steel​

Answer 1

Answer:

time = 4.11 hrs

Step-by-step explanation:

distance = speed × time

speed = 45km/h

time = 3hr 20 min = 3+(20/60) hrs = 3+1/3 = 10/3 hrs

distance = 45×10/3

=> distance = 150km

now speed = 36 km/h & distance = 150km

=> time = distance/ speed

=> time = 150/36

=> time = 4.11hr

Answer 2

Answer:

25/6 hr

Step-by-step explanation:

Time taken to cover certain distance at a speed of 45 km/hr = (3) 1/3 hr

Distance= Speed × time = 45 × 10/3 = 150 km

New speed = 36 km/hr

Hence time taken = 150/36 = 25/6 hr