Question

15.A woman walks a certain distance in 84 minute. she covers two third of it at 4 kilometre per hour and the rest at 5 kilometre per hour find the total distance she covered.​

Answer 1

The total distance she covered is 9 km

Answer 2

Answer:

6 KM 66 M

Step-by-step explanation:

FIRST TAKE OUT  2/3 OF 84

IT IS 28 *2 =56MIN

IF 4KM PER HOUR SO 4000 M IN 60 MIN

SO SHE WILL COVER IN 28 MIN = 4000/60*56= 3733 METRE

REST IS 1/3

AND SHE COVERS I/3 OF 84 IN 5 KM PER HRS

SO 28 MIN

IN ONE HOUR SHE COVERS 5000 M

5000/60*28=2333M

TOTAL DISTANCE=3733+2333M=6066M

OR 6 KM 66 M

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