Math, asked by pvramireddy507, 4 months ago

the ratio of boys and girls in a school is 7 is to 5 if the total number of students in the school is 480 find the number of boys​

Answers

Answered by ItzBrainlyGirl024
6

Answer:

GIVEN :-

The ratio of boys and girls in a school = 7:5

Total number of students in the school = 480

LET,

Number of boys = 7x

Number of girls = 5x

===> 7x + 5x = 480

===> 12x = 480

===> x = 480 / 12

===> x = 40

:. Number of boys = 7x = 7 × 40 ===> 280

:. Number of girls = 5x = 5 × 40 ===> 200

HENCE,

Number of boys = 280

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Answered by MissOxford
10

Answer:

\huge\fbox\blue{Question}

the ratio of boys and girls in a school is 7 is to 5 if the total number of students in the school is 480 find the number of boys

\huge\fbox\blue{Answer}

\rm\pink{given}

  • Ratio of boys : girls = 7:5

  • Total number of students = 480

Therefore ,

  • Let the number of boys be 7x

  • Let the number of girl be 5x

From this we get to know that 7x + 5x that is the number of boys and girls = 480 that is the total number of students.

  • 7x + 5x = 480

➡️ 12x = 480

➡️ x = 480/12

➡️ x = 40

  • Number of boys = 7x

➡️ 7 × 40

➡️ 280

  • Number of girls = 5x

➡️ 5 × 40

➡️ 200

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