Direction: Study the following pie-chart and bm diagram and answer the following questions

Percentage-wise Distribution of students in 6 Different Schools. Total number of students = 600

1722021684_bargraph 10a.JPG

Number of Boys in Each School Out of 6000 Students

1722021621_bargraph 10b.JPG

1)

The number of girls in School A is approximately what percentage of the total number of students in school B?


A) 55

B) 50

C) 35

D) 45

E) 40

Answer:

Option E

Explanation:

Number of students in:

A → $\left(\frac{12}{100}\times6000\right)$ = 720

B → $\left(\frac{9}{100}\times6000\right)$ = 540

C → $\left(\frac{26}{100}\times6000\right)$ = 1560

D → $\left(\frac{18}{100}\times6000\right)$ = 1080

E → $\left(\frac{29}{100}\times6000\right)$ = 1740

F → $\left(\frac{6}{100}\times6000\right)$ = 360

Number of boys in :

A → 500, B → 400, C → 900, D → 600, E → 1200, F → 100.

Number of girls in:

A  → (720 - 500) = 220; B  → (540 - 400) 140; C  → (1560 - 900) = 660

D  → (1080 - 600) = 480; E  → (1740 - 1200) = 540; F  → (360 - 100) = 260.

 Let (Number of girls in A) be x% of number of Students in B. Then,

$200= \frac{x}{100}\times540$

= $x = \frac{\left(200\times100\right)}{540}$

= $\frac{1100}{27}$ = 40.7% = 40% (nearly).