The number of female teachers in District D is approximately what percent of the total number of teachers (both male & female) in District A?

Answer: Option E

$$\begin{array}{rl}& \text{Total number of teachers in:}\\ & \text{A → }\frac{14}{100}\times 4500=630\\ & \text{B → }\frac{16}{100}\times 4500=720\\ & \text{C → }\frac{28}{100}\times 4500=1260\\ & \text{D → }\frac{15}{100}\times 4500=675\\ & \text{E → }\frac{21}{100}\times 4500=945\\ & \text{F → }\frac{6}{100}\times 4500=270\end{array}$$

	A	B	C	D	E	F
Males	200	400	600	100	500	100
Females	430	320	660	575	445	170

Female teacher in D = 575
Total number of teacher in A
= 200 + 430
= 630
∴ Required percentage
$$\begin{array}{rl}& =\left(\frac{575}{630}\times 100\right)\%\\ & =\frac{5750}{63}\%\\ & =91.2\%\\ & \approx 90\%\end{array}$$