Dan's age after 20 years will be 7 times his age 4 years ago. What is the present age of Dan?	Choose the correct choice from the following options:  A) 6  B) 8  C) 10  D) 12  E) 14

Rationale: "let dan ' s present age be x . x + 20 = 7 ( x - 4 ) 6 x = 48 x = 8 the answer is b ."
Answer: B