A) 44 km/h
B) 42 km/h
C) 41 km/h
D) 33 km/h
Correct Answer: A
Solution :
Average speed \[\text{=}\frac{\text{Total}\,\,\text{distance}}{\text{Total}\,\,\text{time}}\] \[=\frac{50\times 1+32\times \frac{1}{2}}{1+\frac{1}{2}}=\frac{50+16}{3/2}=\frac{66\times 2}{3}=44\,\,km/h\]You need to login to perform this action.
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