Tobias and Vanessa are making apple pies fora school-wide bake sale. Tobias can peel 18 apples in 12 minutes. Together, Tobias and Vanessa can peel 40 apples in 20 minutes. How long would it take Vanessa to peel 24 apples by herself?

Respuesta :

Answer:

It would take Vanessa 12 minutes

Step-by-step explanation:

Tobias peels 1.5 apples a minute

1.5 x 12 = 18

Take 1.5 apples and multiply it by 20 minutes = 30 apples

Vanessa peels 1 apple in 2 minutes

24 divided by 2 = 12

It would take Vanessa 48 minutes to peel 24 apples.

Tobias can peel 18 apples in 12 minutes. Therefore:

Number of apples peeled by Tobias in 1 minute = 18 apples / 12 minutes = 1.5 apples per minute

In 20 minutes:

Number of apple peeled by Tobias = 1.5 apples per minute * 20 min = 30 apples

Since Tobias and Vanessa can peel 40 apples in 20 minutes. hence:

30 apples + apples peeled by Vanessa = 40

Apples peeled by Vanessa = 10

Vanessa peeled 10 apples in 20 minutes at a rate of 2 minute per apple.

To peel 24 apples:

Time taken = 24 apples * 2 minute per apple = 48 minute

It would take Vanessa 48 minutes to peel 24 apples.

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