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attashe74 [19]
3 years ago
13

Although five of John's answers were incorrect, 90% of his answers were correct. How many questions did John answer in all?

Mathematics
1 answer:
fiasKO [112]3 years ago
7 0

Answer:

John answered 50 questions.

Step-by-step explanation:

Although five of John's answers were incorrect, 90% of his answers were correct.

This means that 5 is 100 - 90% = 10% of the total number of questions, n. So

0.1n = 5

n = \frac{5}{0.1}

n = 50

John answered 50 questions.

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