a, b, c and d are four consecutive numbers. If the sum of a and dis 109, what is the product of b and c?	Choose the correct choice from the following answers
A) 2652  B) 2578  C) 2970  D) 3354  E) 4234
2970   2970   Here d = a + 3   a + a + 3 = 109   2a = 106   a = 53   So, numbers are 53, 54, 55 and 56   ∴ b × c= 54 × 55 = 2970
<result>C</result>
a, b, c and d are four consecutive numbers. If the sum of a and dis 109, what is the product of b and c?