Question

Paula weeded 40% of her garden in 8 minutes. How many minutes will it take her to weed all of her garden at this rate?

Answer 1

If she weeded 40% of her garden in 8 minutes, we can add another 40% weeded if we add 8 more minutes -

40% + 40% = 80%

8 + 8 = 16 minutes

We need 20% more to reach 100% of her garden. Since 20% is ½ of 40%, we just divide the rate in half -

40%(÷2) in 8(÷2) minutes = 20% in 4 minutes

80% + 20% = 100%

16 + 4 = 20 minutes

Therefore, it takes Paula 20 minutes to weed her entire garden.

Answer 2

That would be 20 minutes.