Question

A train covers 108km in first two hours,33 km in next half an hour and 90 km in next one hour . Find the average speed of the train during the whole journey.

Answer 1

Answer:

do 108. 33

90. x. =27.5

Step-by-step explanation:

cross multiple

Answer 2

Answer:

Total distance covered

= (108+33+90) km = 231 km

Total time taken

= (2+½+1) = $\frac{7}{2}$

Average speed = $\frac{total distance covered}{total time taken}$

= 231 × $\frac{2}{7}$ km/hr

= 66km/hr