A sprinter runs at

MATHEMATICS · Single correct · CBSE · Mathematics · Proportional Reasoning · Proportional Reasoning

Problem

A sprinter runs at

12\,\text{m s}^{-1}

. What is this speed in

\text{km h}^{-1}

? (a)

36\,\text{km h}^{-1}

(b)

43.2\,\text{km h}^{-1}

(c)

32.4\,\text{km h}^{-1}

(d)

72.0\,\text{km h}^{-1}