Question

There are 45 students in a class and 3/5of them are boys . How many girls are there in the class ?

Answer 1

Total no of students=45

No of boys=3/5×45=27

No of girls=45-27=18

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Answer 2

The number of girls in the class = 18

Given :

There are 45 students in a class and 3/5 of them are boys

To find :

The number of girls in the class

Solution :

Step 1 of 2 :

Calculate number of boys in the class

Here it is given that there are 45 students in a class and 3/5 of them are boys

So number of boys in the class

= 45 × 3/5

= 27

Step 2 of 2 :

Calculate number of girls in the class

Total number of students in the class = 45

Number of boys in the class = 27

∴ Number of girls in the class

= 45 - 27

= 18

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