Air near sea level has a density of

MATHEMATICS · Single correct · AoPS · Mathematics · Ratios and Percents · Ratios and Percents

Problem

0.075\,\text{lb}\text{/}\text{ft}^{3}

. Using the conversion factors

1\,\text{lb}=0.453592\,\text{kg}

and

1\,\text{ft}=0.3048\,\text{m}

, determine the density in

\text{kg}\text{/}\text{m}^{3}

. (a)

0.37\,\text{kg}\text{/}\text{m}^{3}

(b)

1.2\,\text{kg}\text{/}\text{m}^{3}

(c)

0.11\,\text{kg}\text{/}\text{m}^{3}

(d)

2.6\,\text{kg}\text{/}\text{m}^{3}