Question

8. The ratio of boys to girls in a primary school is 3: 7. Find the number of
boys and girls if the total number of students is 800.
the length of rectangle to its breadth is 3.2. If its perimeter​

Answer 1

Answer:

number of boys is 3x = 240,

number of girls is 7x = 560.

Step-by-step explanation:

let the ratios be x

therefore: -

3x + 7x = 800,

10x = 800,

x = 800/10,

x = 80

therefore number of boys is 3x = 240,

and number of girls is 7x = 560.