Richa travels from A to B at the speed of 15 km/h, from B to C at 20 k – McqOptions

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1.	Richa travels from A to B at the speed of 15 km/h, from B to C at 20 km/h, and from C to D at 30 km/h If AB = BC = CD, then find the Richa's average speed.
A.	17 km/h
B.	19 km/h
C.	20 km/h
D.	18 km/h
Answer» D. 18 km/h

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