Question

Two numbers are such that the ratio between then 3:5. if each is increased by five ,the ratio between the new numbers so formed is 2:3.find the original number​

Answer 1

Answer:

15/25

Step-by-step explanation:

let no. be 3x/5x

3x+5/5x+5=2/3

or x=5

and no. was 15/25

Answer 2

★ Given :

ratio of two numbers = 3:5

if each is increased by five then ratio becomes - 2:3

★ To find :

original numbers

★ Solution :

3 : 5

numbers are 3x and 5x

according to question :

$\dfrac{3x + 5}{5x+5} = \dfrac{2}{3}$

by cross multiplication

3(3x+5) = 2(5x+5)

9x + 15 = 10x + 10

10x - 9x = 15 - 10

→ x = 5

therefore ,

original numbers are ,

3x = 3×5 = 15

5x = 5×5 = 25

Answer → 15 and 25.