Question

divide a line segment 45 cm into three parts whose ratio is 5:7:3​

Answer 1

Answer:

15,9,21

Step-by-step explanation:

let this line is divides in ratio = 5x:7x:3x

And now ,

=5x+7x+3x = 45

=15x = 45

x = 45/15 = 3

And x=3

So, divided parts are =

15,21 and 9

Answer 2

Answer:

Let the ratios be = 5x,7x,3x

$= 3x + 5x + 7x = 45 \\ \\ = 15x = 45 \\ \\ x = \frac{45}{15} \\ \\ = x = 3cm$

So,

5x= 15cm

7x = 21cm

3x = 9 cm