Question

Ravi can swim 100 m in 2 minutes.Find his speed in km/hr​

Answer 1

Step-by-step explanation:

distance =100m

time=2min=60×2=120sec

speed=distance/time

100/120 m/sec

100/120× 5/18

= 25/98 or 0.26 km/hr

Answer 2

$\large \fbox{ \: \sf \blue{ A}n{s}w{e}r \: \sf \underline}$

$\\ \sf \rightarrow\ 3\ km/ hour$

$\Huge{\underline{\underline{\blue{\mathfrak{ Solution }}}}}$

$1\ km = 1000\ m\\\\Then\ 100\ m = \frac{100}{1000}\ km\\\\2\ min = \frac{2}{60}\ hour\\\\Speed = \frac{Distance}{Time}\\ \\S = \frac{1}{10}\times \frac{60}{2}\\\\= 3\ km/h$