The product of a and b is equal to 11 more than twice the sum of a and b. If b = 7, what is the value of b - a?
Pick one: A) 2 B) 5 C) 7 D) 24 E) 35

Rationale: "given : ab = 2 ( a + b ) + 11 and b = 7 hence 7 a = 2 a + 14 + 11 5 a = 25 , a = 5 ( a potential trap . do not get excited here . we need to find b - a , not a ) b - a = 7 - 5 = 2 correct option : a"
Answer: A