Question

Doors for the small cabinets are 11.5 inches long. Doors for the large cabinets are 3.5 times as long as the doors for the small cabinets. How many large doors can be cut from a board that is 10 feet long?

Answer 1

2 large doors

Explanation:

Doors for large cabinets = 3.5 * 11.5 inches = 40.25 inches long

First, we change 10 feet to inches,

1 feet = 12 inches

So 10 feet = 12 * 10 = 120 inches

If each door is 40.25 inches long, how many can we cut?

120/40.25 = 2.98 [that's just short of 3 large cabinet doors]

So, we can cut 2 large doors from the board that is 10 feet long.