Terribly incorrect answer in the practice map

I got the following question in the practice map-

How many of the integers from 0 to 100 inclusive are relatively prime to 15??

I used PIE to arrive at a correct answer but the grader says the answer is 213....this is impossible.

#Combinatorics #HelpMe! #Help #brillianthelp #Pleasehelp

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Math	Appears as
Remember to wrap math in `$` ... `$` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$

Comments

LOL 213 ....~_~

Aditya Raut - 7 years ago

thanks for reporting, we will fix it. in the future, you can also use the problem menu options to report the problem

Suyeon Khim Staff - 7 years ago

Thank you. We have fixed the problem.

Calvin Lin Staff - 7 years ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$