Question

a car travels 48 km in 30 min them next 60 km in 60 min. calculate its average speed.​

Answer 1

Answer:

Total distance covered = 48 + 60 = 108 km

Total time taken = 30 + 60 = 90 min = 1.5 hr

Speed = 108 ÷ 1.5 = 72 km/hr

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Answer 2

Answer:

average speed =total dist/total time

Explanation:

the units are not given in SI units lets convert them to SI:

30 min = 0.5 hrs

60 min = 1 hrs

lets apply the formula

avg speed = 48+60 / 1+0.5

avg speed = 108/1.5

= 72 km/h

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