SAT Math problem. Could anyone possibly solve this question?

Question

Cara is hanging a poster that is 91 centimeters (cm) wide in her room. The center of the wall is 180 cm from the right end of the wall. If Cara hangs the poster so that the center of the poster is located at the center of the wall, how far will the left and right edges of the poster be from the right end of the wall?

a. 225.5 cm and 89 cm, respectively

b. 271.5 cm and 134.5 cm, respectively

c. 225.5 cm and 134.5 cm, respectively

d. 271 cm and 89 cm, respectively

Answer 1

The poster is 91 cm wide. That means it is 45.5 cm to the left and right sides from the center. Since we are placing the center of the poster at the center the wall, the center of the poster is 180 cm from the right side of the wall and the edges of the poster are 180 +/- 45.5 cm from the right side of the wall: (c)