Question

A person travelling on a bus noted the timings and the corresponding distances as indicated on the km stones. time-distance 8.00 AM-10km 8.15 AM-20km 8.30 AM-30km 8.45 AM-40km 9.00 AM-50km

Answer 1

average speed between 8.00 AM and 8.15 AM : 10km/(1/4 hr) = 40 kmph
average speed between 8:!5 and 8:30  :  10km/(1/4) = 40 kmph

avg speed between 8:30 and 8:45 :  10/(1/4) = 40 kmph
avg speed between 8:45 and 9:00 :  10/(1/4) = 40 kmph

so the bus is traveling at uniform speed.  The average speed from 8:00 AM to 9:00 PM =  40 kmph

Total distance traveled = 40 km

Answer 2

Answer:

Average speed between 8:00 AM and 8:15 AM =10Km /(1/4 hr)=40 Kmph

Average speed between 8:15 AM and 8:30 AM =10Km /(1/4 hr)=40 Kmph

Average speed between 8:30 AM and 8:45 AM= 10Km /(1/4 hr)=40 Kmph

Average speed between 8:45 AM and 9:00 AM= 10Km /(1/4 hr)=40 Kmph

So,the bus is traveling at uniform speed. The average speed from 8:00 AM to 9:00 AM= 40Kmph

Total distance travelled = 40Km