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[The Fifth Horseman]

69. Tom is 4 times as old as Todd. In 4 years, Tom's age will be 16 years more then 2 times Todd's age. How old is Tom? A. 40 B.37 C.41 D.38

Put it into a pair of equations and see what you'll get:
To=4Td
To+4=16+2(Td+4)

To=4Td
To=12+2Td+8

To=4Td
To=2Td+20

4Td=2Td+20
2Td=20
Td=10

Then just substitute that in the first set of equations to calculate Tom's age.