Please help me, It is due in a few mintues. You swim 3.6 kilometers per hour. How long (in minutes) will it take you to swim the distance $d$ across the pond?

Question

You swim 3.6 kilometers per hour. How long (in minutes) will it take you to swim the distance $d$d​ across the pond?

It will take you minute(s).

Answer 1

Triangles ABC and CDE are similar triangles.

Therefore, their sides are in the same ratio:

AB:DE = BC:CE

105:d = 140:80

140*d = 105*80

d = 60m

speed at which you swim = 3.6km/hr

speed at which you swim 60m or (60/1000)km = (60/1000)/3.6 hr = 1/60 hr = 1 minute

Answer 2

By similar triangles, d = 60 m

t = d / r

t = 60 / 3600

t = 1 / 60

t = 1 minute