Question

A bus moves 300 km at  a speed of 45km/h and then it increases its speed to 60 km/hr to travel another 500 km. Find the average speed of the bus. 

(A)    15 km/hr      (B)  53.3 km/hr      (C)  12 km/hr    (D) 17.8 km/hr

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Answer 1

Step-by-step explanation:

option d

use the formula 2v1v2/v1+v2

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