Question

An athelete completed a m race running at a speed of 6.25 m/s. Calculate his speed in km/h​

Answer 1

Answer:

22.5 km/hr

Explanation:

6.25*(18/5)= 22.5

Answer 2

$⇛6.25 \times \frac{ 3600 }{ 1000 } \\ \\ ⇛ \sf \: \sf \: 6.25\times \left(\frac{18}{5}\right) \\ \\ \sf \: Convert \: decimal \: number \: 6.25 \: to \: fraction \: \frac{625}{100} \\ \sf{{Reduce \: the \: fraction \: \frac{625}{100} \: to \: lowest \: terms \: by \: extracting \: and \: cancelling \: out \: 25}} \\ \\ ⇛ \sf \: \frac{25}{4}\times \left(\frac{18}{5}\right) \\ \\ ⇛\sf \: \frac{25\times 18}{4\times 5} \\ \\ ⇛ \sf \: \frac{450}{20} \\ \\ ⇛\sf \: \frac{45}{2} \\ \\ ⇛\sf { \red{22.5 \: m/s}}$

$\sf \: {@WildCat7083 }$