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a car travels half distance with speed 60km/h and rest with 30km/h then avg. speed is

a car travels half distance with speed 60km/h and rest with 30km/h then avg. speed is
 

Grade:11

1 Answers

Abhinav
askIITians Faculty 387 Points
6 years ago
let total distance be 2D

than total time taken is D/30 + D/60

hence avg speed is 40km/h

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