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In a class, there are 'z' students. Out of them 'x' are boys. What part of the class is composed of girls ?
Answer & Solution
Correct Answer:
Option
C
Total students = z
Total boys = x
Total girls = z - x
⇒ $$\frac{{{\text{Number of girls}}}}{{{\text{Total students}}}}$$
= $$\frac{z - x}{{z}}$$
= 1 - $$\frac{x}{{z}}$$
Total boys = x
Total girls = z - x
⇒ $$\frac{{{\text{Number of girls}}}}{{{\text{Total students}}}}$$
= $$\frac{z - x}{{z}}$$
= 1 - $$\frac{x}{{z}}$$
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