Question 125

Study the given pie chart and answer the question that follows.

The total number of students in schools D and E is what percentage more than the total number of students in schools B and C?

Solution

 The total degree D and E  =$$ 118.8^{\circ} + 61.2^{\circ} = 180^{\circ}$$

so student of D and E = $$\dfrac{180}{360}\times 9000 $$

$$\Rightarrow 4500 $$

again total degree of B and C =$$ 64.8 ^{\circ}+79.2^{\circ}= 144^{\circ}$$

so student of B and C = $$\dfrac {144}{360} \times 9000$$

$$\Rightarrow 3600 $$

% more than total number of students B and C = $$\dfrac{4500-3600}{3600}\times 100 $$

$$\Rightarrow \dfrac{900}{3600}\times 100$$

$$\Rightarrow 25 $$ % Ans 


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