Question

an object covers a distance of 200 km from A to B. it covers first 50 km with a uniform speed of 50 km/h what is its speed for remaining distance if the average speed is 60km/h​

Answer 1

average speed is calculated by adding total speeds & devided by 2 so

let's assume another speed is x.

50+x/2 = 60

50+x =120

x = 120-50

x = 70

hence another speed is 70km/h