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A cyclist covers his first 3 miles at an average speed of 8mph another 2 miles at 3mph and last 2 miles at 2mph then the average speed for the entire Journey is
(In mph)

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2.4

3.8

3.43

answer is A.

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Detailed Solution

d₁=3, d₂=2, d₃=2
v₁=8, v₂=3, v₃=2
Average = $\frac{d_{1} + d_{2} + d_{3}}{\frac{d_{1}}{v_{1}} + \frac{d_{2}}{v_{2}} + \frac{d_{3}}{v_{3}}} = 3.43$

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