Question

The ratio of two numbers is 3 is 25 if each number is increased by 10 the ratio between the new number so formed is 5 is to 7 find the original number

Answer 1

Answer =

30/104

Step-by-step explanation:

Let the number be x

ATQ

3x :25x

3x +10/25x+10=5/7

7(3x+10)=5(25x+10)

21x+70=125x+50

21x-125x=50-70

-104x=-30

x=30/104

x=15/52

Answer 2

Answer:

Two numbers are such that the ratio between them is 3:5.

If each is increased by 10, the ratio between the new numbers so formed is 5:7.

find the original numbers.

:

Let x = the multiplier

then

3x = one number

5x = the other number

:

"If each is increased by 10, the ratio between the new numbers so formed is 5:7."

 = 

Cross multiply

5(5x+10) = 7(3x+10)

:

25x + 50 = 21x + 70

25x - 21x = 70 - 50

4x = 20

x = 20/4

x = 5 is the multiplier

then

3(5) = 15 is the 1st number

5(5) = 25 is the 2nd number