Answer:
$45 (corrected answer)
Step-by-step explanation:
Given
Gavin : Jim = 1 : 3
fraction that Gavin gets = 1 / (1+3) = 1/4
fraction that Jim gets = 3 / (1+3) = 3/4
given that Gavin gets $15,
Gavin's share = (1/4) ----> equivalent to $15
Jim's share = (3/4) ----> equivalent to $15 x 3 = $45