Three years ago, Sherman was twice as old as Clive. If Clive’s present age is c, which expression represents Sherman’s present age in terms of Clive’s age?
A.
2c − 3
B.
2c + 6
C.
2(c − 3)
D.
2c + 3

Question

Three years ago, Sherman was twice as old as Clive. If Clive’s present age is c, which expression represents Sherman’s present age in terms of Clive’s age?
A. 
2c − 3
B. 
2c + 6
C. 
2(c − 3)
D. 
2c + 3

Mercury · Answer

"three years ago" so at that time clive was (c-3) years old
"three years ago sherman was twice as old as clive" so at that time sherman was 2*(c-3) years old

it wants sherman's present age, so you'd just add 3 to 2(c-3) and simplify to get the result