Respuesta :

mikeyafton0

Answer:

The answer's D.

Step-by-step explanation:

If 40 questions were put in and only 50% of them were used then only 20 questions were used. If you need 40 more questions and 80% of the qustions were used, then she wrote 50 questions.

Answer:  D) 50

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Explanation:

There are 60 questions total.

Amita made 40 questions, but only 50% were considered "good" to be used. So that means 0.50*40 = 20 questions were used.

This means 60-20 = 40 questions remain, and this must be the amount of "good" questions that Meena provided.

We're told that 80% of Meena's questions were considered "good". Let x be the total number of questions she provided.

80% of x = (number of "good" questions Meena offered)

0.80x = 40

x = 40/0.80

x = 50

Therefore, Meena wrote up 50 questions.

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