A car during its journey travels 30 min at a speed of 40 km/h, another 45 min at a speed of 60 km/h and 2 h at a speed of 70 km/h. Find its average speed ?

A car during its journey travels 30 min at a speed of 40 km/h, another

1.	A car during its journey travels 30 min at a speed of 40 km/h, another 45 min at a speed of 60 km/h and 2 h at a speed of 70 km/h. Find its average speed ?
A.	58 km/h
B.	63 km/h
C.	67 km/h
D.	71 km / h
Answer» C. 67 km/h

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A car during its journey travels 30 min at a speed of 40 km/h, another 45 min at a speed of 60 km/h and 2 h at a speed of 70 km/h. Find its average speed ?

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