Question

A woman walks a certain in 84 min. She covers two
thirds of its at 4 km/h and the rest at 5 km/h. Find
the total distance she covered.

Answer 1

Answer:

$\large{\bf{\blue{\underline{\underline{Hii...!!}}}}}$

Let total distance covered be D

Total time taken= 84min= 7/5 hrs

Time taken= distance./ speed

2D/3(4) +D/ 3(5) =7/5

(10D+4D)5= 21(20)

70D= 420

D= 420/70

D= 6

Therefore total distance covered = 6km

Answer 2

Answer:

ur and is 6km thanks ......