Question

8. The ratio of two numbers is 3: 8 and their
difference is 115. What is the largest
number?​

Answer 1

Answer:

8x-3x=115

5x=115

x=115/5

x=23

Answer 2

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Let the two numbers be x and y

Now x:y=3:8

or x/y = 3/8 or 3y=8x or y= 8x/3

and x-y=125

Putting value of y

x-8x/3 = 125

or 3x-8x/3 = 125

or -5x = 375

or x = -75

Thus value of y is

-75-y = 125

or -y = 200

or y = -200