People were sitting in a circle.7th one is direct opposite to 18th one..Then how many were there in that group?
Select.
A) 21	B) 22	C) 23	D) 24	E) 20

Rationale: 7 th one is exactly opposite represents half of circle . with 7 and 18 total members are 12 for remaing half = 12 * 2 - 2 ( 7 th and 18 th ( already taken ) ) = 22 answer : b
Answer: B