In a class of 25 students, there are 15 boys. What is the percentage of girls in this class? $[2 Marks]$

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Solution

The class strength is 25.
Out of 25 students, 15 are boys.
Thus, number of girls = 25 - 15 = 10 $[1 Mark]$
Therefore, percentage of girls in the class is:
$\frac{10}{25} \times 100 = 40 %$ $[1 Mark]$

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In a class of 25 students, there are 15 boys. What is the percentage of girls in this class? [2 Marks]

The class strength is 25. Out of 25 students, 15 are boys. Thus, number of girls = 25 - 15 = 10 [1 Mark] Therefore, percentage of girls in the class is: 1025×100=40% [1 Mark]

In a class of 25 students, there are 15 boys. What is the percentage of girls in this class? $[2 Marks]$

The class strength is 25.
Out of 25 students, 15 are boys.
Thus, number of girls = 25 - 15 = 10 $[1 Mark]$
Therefore, percentage of girls in the class is:
$\frac{10}{25} \times 100 = 40 %$ $[1 Mark]$