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three have 2 each?
9. There are 6 multiple choice questions in an examination. How many sequenos
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Step-by-step explanation:
There are 6 multiple choice questions on an examination. How many sequences of answers are possible, if the first three questions have 4 choices each and the next three have 5 each?
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Each of teh first threee questions can be answered in 4 ways.Each of the last three questions can be answered in 5 ways.
By the fundamental principle of counting, sequences of answers are
4×4×4×5×5×5×=64×125
=8000
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