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A person travels equal distances with speed of 3 km/hr, 4 km/hr and 5 km/hr and takes a total of 47 minutes. Find the total distane

A. 3 km

B. 4 km

C. 6 km

D. 9 km

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Correct Answer : A.

Let the distance be 3x km,

t h e n, \frac{x}{3} + \frac{x}{4} + \frac{x}{5} = \frac{47}{60}

\frac{47 x}{60} = \frac{47}{60}

x = 1

So total distance = 3*1 = 3 Km

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