Your bedroom wall is 171 inches wide. You want to hang two posters, each 42 inches across, with an equal space between each poster and the wall edges. How many inches of space should you leave between the wall edge and poster?

29

Step-by-step explanation:

42x2=84

171-84=87

87/3=29 inches of space.

43.5 inches of space should be left between the wall edge and posters.

Step-by-step explanation:

Step 1: Calculate width of both posters together.

Width of 1 poster = 42 inches

∴ Width of 2 posters = 2 * 42 = 84 in

Step 2: Calculate the remaining area in the wall.

Remaining width = 171 - 84 = 87 in

Step 3: Since equal space should be given between each poster and the wall, calculate this space.

Space between wall and poster = 87/2 = 43.5 in