Question

Kevin is 2 times as old as Gabriela. 12 years ago, Kevin was 6 times as old as Gabriela. How old is Kevin now?

Answer 1

Answer:

let Kevin's age be x years and Gabriel's age be y years

ATP

x=2y -------------------------------------(1)

twelve years ago

x+12=6(y+12)

x+12=6y+72

x=6y+72-12

x=6y+60 --------------------------------(2)

put 1 in 2

2y=6y+60

6y-2y=-60

4y=-60

$y = \frac{60}{4}$

$y = 15$

x=2y=2×15=30

•°• Kavin's age is 30 years and Gabriel's age is 15 years