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Question

# A person covers a distance 100 Kms in 10 hours, partly by walking at 7 Km/h and rest by running at 12 Km/h. Find the distance covered in each part.

A
28 Km, 72 Km
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B
32 Km, 82 Km
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C
24 Km, 68 Km
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D
26 Km, 70 Km
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E
None of the above
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Solution

## The correct option is A 28 Km, 72 KmAverage speed =10010=10Km/h Ratio of time taken at 7 Km/h to 12 Km/h =2 : 3. Time taken at 7 Km/h =22+3×10=4 hours. Distance covered at 7 Km/h =7×4=28Km Distance covered at 12 Km/h 100−28=72Km

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