Answer:
His wife gets $336 more than his son.
Step-by-step explanation:
Colin and Brian:
Ratio of 4:1.
So Colin gets [tex]\frac{4}{4+1} = \frac{4}{5}[/tex] of the prize.
[tex]\frac{4*2100}{5} = 1680[/tex]
Colin got $1680. Dividing between himself, his wife and their son:
Ratio of 2:5:3.
So Colin gets [tex]\frac{2}{2+3+5} = \frac{2}{10}[/tex], his wife gets [tex]\frac{5}{2+3+5} = \frac{5}{10}[/tex] and his son gets [tex]\frac{3}{2+3+5} = \frac{3}{10}[/tex]
Wife:
[tex]\frac{5*1680}{10} = 840[/tex]
His wife got $840.
Son:
[tex]\frac{3*1680}{10} = 504[/tex]
His son got $504.
How much more does his wife get over their son?
840 - 504 = 336
His wife gets $336 more than his son.