A woman walks a certain distance in 84 min. She covers two thirds of i – InterviewSolution

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1.	A woman walks a certain distance in 84 min. She covers two thirds of it at 4 km/h and the rest at 5 km/h. Find the total distance she covered
Answer» Let total distance covered be DTotal time taken= 84min= 7/5 hrsTime taken= distance./ speed2D/3(4) +D/ 3(5) =7/5(10D+4D)5= 21(20)70D= 420D= 420/70D= 6Therefore total distance covered = 6km

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