The ratio of boys to girls in a school is 5 : 2. The number of boys is more by 450 than that of girls. How many students are there in that school ?

650

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1050

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400

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950

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Solution

The correct option is B 1050
Boys : Girls = 5x : 2x
According to the question
5x - 2x = 450
3x = 450 = x =150
∴ Number of students in that school
= 5x + 2x = 7x
7 x 150 = 1050

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The ratio of boys to girls in a school is 5 : 2. The number of boys is more by 450 than that of girls. How many students are there in that school ?

The correct option is B 1050Boys : Girls = 5x : 2x According to the question5x - 2x = 4503x = 450 = x =150∴∴ Number of students in that school = 5x + 2x = 7x 7 x 150 = 1050

The correct option is B 1050
Boys : Girls = 5x : 2x
According to the question
5x - 2x = 450
3x = 450 = x =150
∴ Number of students in that school
= 5x + 2x = 7x
7 x 150 = 1050