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Mathematics 11 Online
OpenStudy (anonymous):

Check my answer How many ways are there to answer a 20-question true-false exam?

OpenStudy (anonymous):

I got 1,048,576

OpenStudy (akashdeepdeb):

Each question can be answered in 2 ways. So by fundamental principal of counting [multiplication] We get the no. of ways: \(2^{20}\) ways.

OpenStudy (anonymous):

Okay! I did it right then. Thanks

OpenStudy (akashdeepdeb):

:)

OpenStudy (anonymous):

Could you try to help with a few more questions?

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