Question : Study the following bar graph and answer the questions given below.
Total number of boys and girls in schools A, B, C, D and E.
Difference between the number of boys and girls in schools A, B, C, D and E.
Note: The number of boys > the number of girls.
What is the difference between the number of girls in school A and the number of girls in school C?
Option 1: 20
Option 2: 30
Option 3: 35
Option 4: 25
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Correct Answer: 25
Solution :
For School A
Number of Boys + Number of Girls = 1800
and, Number of Boys – Number of Girls = 350
⇒ 2 (Number of girls in school A) = 1450
⇒ Number of girls in school A = $\frac{1450}{2}$ = 725
For School C
Number of Boys + Number of Girls = 2000
and, Number of Boys – Number of Girls = 500
⇒ 2 (Number of girls in school C) = 1500
⇒ Number of girls in school C = $\frac{1500}{2}$ = 750
Difference between girls in school A and school C = 750 – 725 = 25
Hence, the correct answer is 25.
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