The Lawn Order lawnmower factory can produce 12 lawnmowers in 4 hours. How many hours will it take the factory to produce 63 lawnmowers?

A] 9 hours

B] 7 hours

C] 12 hours

D] 21 hours

4 / 12 = x / 63

4 / 63 = 12 * x

252 / 12 = x

21 = x

21 hours

Am I wrong?

You're right. D is the correct answer.

To find out how many hours it will take the Lawn Order lawnmower factory to produce 63 lawnmowers, we can set up a proportion.

We know that the factory can produce 12 lawnmowers in 4 hours.

Let's set up the proportion:

12 lawnmowers / 4 hours = 63 lawnmowers / x hours

To solve for x (the unknown number of hours), we can cross-multiply:

12 * x = 4 * 63

12x = 252

Now, we can solve for x by dividing both sides of the equation by 12:

x = 252 / 12

x = 21

Therefore, it will take the factory 21 hours to produce 63 lawnmowers.

The correct answer is option D] 21 hours.