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by danjuma » Wed Oct 06, 2010 10:51 am
A multiple choice test consists of 10 questions. Each question has 5 answer choices. In how many different ways can the test be completed if all the questions are answered?

1.50
2.500
3 5 to the 10th power
4.10 to the fifth power
5.5000
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by shovan85 » Wed Oct 06, 2010 10:56 am
IMO C

first q can be answered in 5 ways.
2nd in 5 ways.
.
.
.
10th in 5 ways.

Total = 5*5*... 10 times
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by limestone » Fri Oct 08, 2010 1:35 am
IMO : C too

For each question, we are asked to pick 1 answer choice among 5.

Then No. of picking answer choice in each question is : 5P1 = 5

There're distinctive 10 questions, then the total no. of ways is : 5^10.
"There is nothing either good or bad - but thinking makes it so" - Shakespeare.
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