Question

A truck Travels at 40 kilometre per hour for 3 hour and 35 kilometre per hour for 2 hour find its average speed

Answer 1

Answer:

38 kilometer per hour

Step-by-step explanation:

with first speed for 3 hours; 40*3 = 120 kilometers

and with 35 km/hr for 2 hours: 35*2=70 kilometers

total travel: 120+70= 190 kilometers

total time: 3 + 2 = 5 hours

the average speed= 190/5 = 38 kilometer per hour

Answer 2

Answer: 38km/hr

Step-by-step explanation:

Distance travelled at 40km/hr

= 40×3

=120km

Distance travelled at 35km/hr

=35×2= 70km

Therefore total distance travelled= 120+70=190km

Total time taken= 3+2=5hr

Therefore average speed=

Total distance/total time

=190/5

=38km/hr