Question

two numbers are such the ratio b\w them is 3:5 .if each is increased by 10,the ratio b\w the new no. so foremed is 5:7 .find the original no.

Answer 1

HEYA !!!!......

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Let two nos. be 3x and 5x.

now, If each is increased by 10, then

$\frac{3x + 10}{5x + 10} = \frac{5}{7} \\ \\ = > 21x + 70 = 25x + 50 \\ \\ = > 21x - 25x = 50 - 70 \\ \\ = > - 4x = - 20 \\ \\ = > x = 5$


●thus, the nos. are 3x = 15 and 5x= 25


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Hope it helps u !!!!

Cheers

# Nikky

Answer 2

suppose two nos. are x and y
now from the question
x/y = 3/5
again
x+10/y+10 = 5/7
from first equation we get
x = 3y/5
now the value of x put in the 2nd equation , now we get equation in the form

(3y/5+10)/(y+10) = 5/7 and now solve this equation we found the value of y is 25 . put the value of y in the first equation the value of x will be 15.