Question 284271
Laura spent 1/3 of her money, then she spent 1/3 of the remainder. Altogether she spent
$120.
How much did she have to start with?

let her have $x

she spent 1/3 *x

She had balance of x-1/3*x

She again spent 1/3 * (x-1/3*x)

1/3*x + 1/3 * (x-x/3)

x/3 +1/3 * (3x-x/3)

x/3 + 1/9 *2x

3x+2x/9 = 120

5x/9=120

5x=1080

x= 216

She had $216