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OpenStudy (anonymous):
Check my answer How many ways are there to answer a 20-question true-false exam?
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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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