Question

there are 560 students in a school. 320 are boys. find the percentage of girls in that school?

Answer 1

Answer:

No of pupils in school=560

No of boys in school = 320

No of girls in school =560-320

=240

Percentage of girls. =240/560x100

=42.85%

Answer 2

Answer:

Concept:

Percentage means a number or a ratio represented in the form of fractions of 100. It is represented using the percentage sign "%".

Find:

there are 560 students in a school. 320 are boys. find the percentage of girls in that school?

Given:

there are 560 students in a school. 320 are boys. find the percentage of girls in that school?

Step-by-step explanation:

In mathematics, a percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word per cent means per 100. It is represented by the symbol "%".

Percentages have no dimension. Hence it is called a dimensionless number. If we say, 50% of a number, then it means 50 per cent of its whole.

Percentages can also be represented in decimal or fraction form, such as 0.6%, 0.25%, etc. In academics, the marks obtained in any subject are calculated in terms of percentage. Like, Ram has got 78% of marks in his final exam. So, this percentage is calculated on account of the total marks obtained by Ram, in all subjects to the total marks.

let the no of girl be x and boys is 320

we are given total no of student = x + 320

X+320 = 560

X = 560-320

X = 240

$percentage \: of \: girls = \frac{240}{560} \times 320$

percentage of girls = 42.85%

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