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M: +2.00/-0.50

A car travelled distances of 10 km, 20 km and 30 km at speeds of 30 km/h, 40 km/h and 60 km/h, respectively. The average speed of the car is:

 

[SSC CHSL 8th June 2022 Shift-1 With Answers]
A
B
C
D

EXPLANATION

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