What will be the ratio between the area of a rectangle and the area of a triangle with one of the sides of rectangle as base and a vertex on the opposite side of rectangle.	Choose the correct choice from the following answers:
A) 1 : 2  B) 2 : 1  C) 3 : 1  D) data inadequate  E) none of these

Rationale: "area of δ ebc = 1 ⁄ 2 × bc × ef = 1 ⁄ 2 × bc × ab [ since , ef = ab ] area of δ ebc = 1 ⁄ 2 × area of δ abcd \ required ratio = 2 : 1 . answer b"
Answer: B