Rebecca sells her personal scooter for $550. she purchased the scooter for $700 three years ago. she also sells a painting for $1,200 which she acquired five years ago for $900.

Rebecca sells her personal scooter = $550
And she purchased three years ago for $700
loss in the selling of scooter = $700 - $550
 = $150
she sell painting for $1200
and he purchased that painting five years ago = $900
profit = $1200 - $900
$300
So $300 - $150  = $150
She still get benefit on selling both things