Answer:
$200
Explanation:
Amanda Beverly
 9 : 3
difference between Amanda and Beverly = 9 - 3 = 6 portions. 
∴ value of 6 portions = $60
 value of 1 portion = $ 60 / 6
 = $10
Total no. of portions = 8 + 9 + 3 = 20
 Total sum of money to be shared = value of 1 portion x Total no. of portions
 = $10 x 20
 = $200