Question

a school has 1800 students on its roll 40% of them are girls how many boys are there in the school​

Answer 1

Answer:1080 boys

Step-by-step explanation:

total no of students=1800

%of girls=40

no of girls=40*1800/100=720

therefore no of boys=1800-720

                                   =1080

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Answer 2

Answer:

Given

Total students on roll =1800

Number of girls=40 percent

Therefore ,40 percent of 1800

=40/1800

720

so 720 are the girls

To find ,Therefore boys =1800-720

=1080

Boys =1080

Hope it helps