Question

One number is 3 times another number. If 15 is added to both the numbers, then one of the new numbers becomes twice that of other new number. Find the numbers. ​

Answer 1

Answer:

let one number be x and another number be y

x=3y

x+15=2(y+15)

x+15=2y+30

x=2y+30-15

x=2y+15

but,x=3y

3y=2y+15

3y-2y=15

y=15

therefore,x=3×15=45