A man jogs to the shop and back in half an hour on the way he jogs at 4m/s and on the way back he jogs at 5m/s ignoring time spent in the shop find the distance to the shop

Ratio 4:5

There are 9 total.

30 mins = 1800 secs.

1800 divided by 9 = 200

200 secs = 3mins 20secs

200 is one "part" of the ratio, so multiply it by 4, then 5

800:1000

This is the important one

V

13mins, 20secs: 16mins 40secs

Distance is speed x time,

16mins x 4 = 64

40 secs = 2/3

x 4 = 1.6666

Distance to shop - 65.6m