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Sonbull [250]
4 years ago
5

A test requires that you answer either part A or part B. Part A consists of 7 true-false questions, and part B consists of 5 mul

tiple-choice questions with one correct answer out of five. How many different completed answer sheets are possible?
Mathematics
1 answer:
jeka944 years ago
5 0

Answer: 3253

Step-by-step explanation:

Given : A test requires that you answer either part A or part B.

Part A consists of 7 true-false questions.

i.e.  there are 2 choices to answer each question.

Now, the number of ways to answer Part A : 2^7=128    (1)

Part B consists of 5 multiple-choice questions with one correct answer out of five.

i.e.  there are 5 choices to answer each question.

Now, the number of ways to answer Part B : 5^5=3125                           (2)

Now, the number of  different ways to completed answer sheets are possible=  128+3125=3253          [Add (1) and (2) ]

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