4 years ago

Zaira is getting 2 questions wrong per every seven. In total 245 questions how many is she getting wrong?

Mathematics

1 answer:

Ludmilka [50]4 years ago

5 0

Answer:

70 questions

Step-by-step explanation:

You can make a proportion.

$\frac{2}{7} =\frac{x}{245}$

Multiply across:

7x=490

Divide by 7:

x=70

<u>Final answer</u>

70 questions

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