two numbers are in the ratio 3 : 5 if 5 is added to each the ratio becomes 2 : 3 find the number. frnds pls solve it pls it's urgent ​

Respuesta :

Answer:

15 and 25

Step-by-step explanation:

x/y=3/5 ⇒ x= 3y/5

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

  • 3x+15= 2y+10
  • 3x+5= 2y
  • 3*3y/5 +5= 2y
  • 2y- 9/5 y= 5
  • 1/5y= 5
  • y= 5*5= 25
  • x= 3*25/5= 15

Answer:

The numbers are : 15 and 25

solution,

Let the number be X and y

[tex] \frac{x}{y} = \frac{3}{5} \\ or \: x \times 5 = 3 \times y \\ or \: 5x = 3y \\ or \: x = \frac{3y}{5} ............ > equation \: i \\ [/tex]

If 5 is added to each number,

[tex] \frac{x + 5}{y + 5} = \frac{2}{3} \\ or \: 3(x + 5) = 2(y + 5) \\ or \: 3x + 15 = 2y + 10 \\ or \: 3x - 2y = - 5[/tex]

putting the value of X

[tex]3 \times \frac{3y}{5} - 2y = - 5 \\ or \: \frac{9y}{5} - 2y = - 5 \\ or \: \frac{9y - 2y \times 5}{5} = - 5 \\ or \: \frac{9y - 10y}{5} = - 5 \\ or - y = - 5 \times 5 \\ or \: - y = - 25 \\ y = 25[/tex]

Replacing the value of y in equation (i)

[tex]x = \frac{3y}{5} \\ x = \frac{3 \times 25}{5} \\ x = \frac{75}{5} \\ x = 15[/tex]

The value of X is 15.

The value of y is 25.

Hence,the two numbers are 15 and 25.

Hope this helps...

Good luck on your assignment..

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