Maria's age is 7 years.
The number is 50.
Vinnie's age is 25 years
The number of hours worked is 8 hours.
Let Maria's age be m years.
It is given that,
m*6 = 42
6m = 42
m = [tex]\frac{42}{6}=7 years[/tex]
Let the number be n.
It is given that,
4*n = 200
4n = 200
[tex]n=\frac{200}{4}=50 years[/tex]
Let Vinnie's age be v years.
It is given that,
2*v = 50
[tex]v=\frac{50}{2}=25 years[/tex]
Let the number of hours worked be h hours.
It is given that,
[tex]\frac{48}{n}=6[/tex]
Hence,
[tex]\frac{48}{6}=8 years[/tex]
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