What per cent of $ 108 \mathrm{~km} / \mathrm{h} $ is $ 15 \mathrm{~m} / \mathrm{s} $ ?
Given:
108 km/h
To do:
We have to how much percent of \( 108 \mathrm{~km} / \mathrm{h} \) is \( 15 \mathrm{~m} / \mathrm{s} \).
Solution:
108 km/h$=108\times\frac{1000}{3600}$ m/s
$=3\times10$ m/s
$=30$ m/s
Let 15 m/s be x% of 30 m/s.
This implies,
$15=\frac{x}{100}\times30$
$x=\frac{15\times100}{30}$
$x=50$%
15 m/s is 50% of 108 km/h.
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