Key Concept: Angles on a line add to 180°So, we can write: 30° + x° + x° = 180
Simplify: 30° + 2x° = 180
Subtract 30° from both sides: 2x° = 150°
Divide both sides by 3 to get: x° = 75°
Answer: D
Hello Brent,
Hope you having a nice day
I have query .How can we imagine its a straight line .Don't you think it should be stated.
Thanks[/quote]
Problem SolvingFigures: All figures accompanying problem solving questions are intended to provide information useful in solving the problems. Figures are drawn as accurately as possible. Exceptions will be clearly noted.
Lines shown as straight are straight, and lines that appear jagged are also straight. he positions of points, angles, regions, etc., exist in the order shown, and angle measures are greater than zero. All figures lie in a plane unless otherwise indicated.
Data Sufficiency:Figures:• Figures conform to the information given in the question, but will not necessarily conform to the additional information given in statements (1) and (2).
• Lines shown as straight are straight, and lines that appear jagged are also straight.• The positions of points, angles, regions, etc., exist in the order shown, and angle measures are greater than zero.
• All figures lie in a plane unless otherwise indicated.[/quote]
Great ..That's very helpful.I guess the excerpts are from GMAC.
I would really have messed the DS question otherwise.Thanks!!