Answer:
$1188 more dollars or twice as more than his son
Step-by-step explanation:
Well first we want to see how much David gets compared to Dan
The ratio is 3:2
To make it easier to understand lets multiply 3:2 by 2 to get 6: 4
now we this is easier because we can say 60% of 9900 is David and 40% of 9900 is Dan
We don't care about Dan so lets solve for David
9900* .6 = 5940
David gets 5940 he splits it 4 : 4 : 2 between himself his wife and son
now we only really care about how much his son and his wife get so lets solve for them
.4 * 5940 = $2376 -> The amount his wife gets
.2 * 5940 = $1188 -> the amount his son gets
2376 - 1188 = 1188
His wife gets $1188 more dollars than his son or his wife gets twice as more than his son
We could have easily found this out by just dividing how much the wife gets by 2 but I chose this way to explain the answer
Hope that helps!