The Sum of first N consecutive odd integers is N^2. What is the sum of all odd integers between 15 and 41 inclusive.	Choose the most appropriate option.
A) 351	B) 392	C) 410	D) 424	E) 450

Rationale: "we ' re dealing with a sequence of consecutive odd integers : 15 to 41 , inclusive . we ' re asked for the sum of this group . 1 ) start with the sum of the smallest and the biggest : 15 + 41 = 56 2 ) now look at the ' next smallest ' and the ' next biggest ' : 17 + 39 = 56 now we have proof that there is no middle term . we have 7 bunches of 56 . 7 ( 56 ) = 392 b"
Answer: B