Question

Question 22

The following pie chart represents the distribution of proteins in parts of human body.

What is the central angle of the sector representing hormones enzymes and other proteins?

(a) 120°

(b) 144°

(c) 156°

(d) 176°

Answer 1

The protion representing hormones enzymens and other proteins $=1-(\frac{1}{3}+\frac{1}{10}+\frac{1}{6})$
$=1-\left(\frac{20+6+10}{60}\right)=1-\frac{36}{60}=\frac{60-36}{60}=\frac{2}{5}$
Central angle of the sector representing hormones enzymes and other proteins
$=\frac{2}{5}\times {360}^{\circ }={144}^{\circ }$