Question

How much space would a 30 Cup shelf require if a 12 shell cupboard requires 18 ft. of wall space?

Answer 1

cardboard for 12shells =18 ft.
" " ". ". ". "1 shell =18/12= 9/6
cardboard for 30shells=9/6×30=.45ft.

Answer 2

A 30 cup shelf would require a space of 45 feet.

• 12 cup a shelf would require 18 feet of wall space.
• Therefore the ratio of cup and wall size are in proportion.
• Now the ratio of 12 cups and 18 feet will be

12/18 = 2/3.

• Now we have to find the space required for 30 cups.

• Let the space required for 30 cups would be x.

2/3 = 30/x

x = 45 feet.

• Space required for 35 cups would be 45 feet.