Question

Two numbers are in a ratio 5:7 when 5 is

added to first number and 2 is subracted from
the second number the new number are in ratio
10:11. Find the numbers?​

Answer 1

Answer:

Let the no. be x

5x & 7x

5x + 5/7x - 2 = 10/11

11(5x+5) = 10(7x - 2)

55x + 55 = 70x -20

55+20 = 70x - 55x

75 = 15x

x = 5

So Number are 5×5 = 25 & 5×7 = 35

Answer 2

let the no be 5x and 7x respectively

According to the question

5x+5. 10

-------- = --------

7x- 2. 11

55x +55 = 70x -20

70x-55x = 55+20

15x = 75

x= 5

hence the no are 5x = 25 and 7x = 35