Question

Mark wants to hang four rectangular pictures in a row on a wall so that the horizontal space between each picture is always the same. Each picture has a length of 8 inches. The wall has a length of 74 inches. If he wants to have 12 inches of horizontal wall space before the first picture and after the fourth picture, how much space should he leave between pictures?

Answer 1

9 inches
12+12+9+9+8+8+8+8=74
12+12=24
9+9=18
8+8+8+8=32
24+18+32=74

Answer 2

18 inches

Explanation:

We are given that Mark wants to hang four rectangular pictures in a row on a wall so that the horizontal space between each picture is always same.

Length of each picture=8 inches

Length of wall=74 inches

Horizontal space before first picture and after the fourth picture=12 inches

We have to find space between pictures.

Let x be the space between pictures

`12+12+8+8+8+8+x=74`

`x+56=74`

`x=74-56=18`

Hence, the distance between pictures=18 inches