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For her English literature course, Ruchika has to choose one novel to study from a list of ten, one poem from a list of fifteen and one short story from a list of seven. How many different choices does Rachel have?

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For her English literature course, Ruchika has to choose one novel to study from a list of ten, one poem from a list of fifteen and one short story from a list of seven. How many different choices does Rachel have?

(a) 34900

(b) 26500

(c) 12000

(d) 10500

The question was posed to me during an interview for a job.

Enquiry is from Fundamental Principle of Counting topic in section Counting of Discrete Mathematics

1 Answer

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Best answer
Correct choice is (d) 10500

Best explanation: By the Basic Counting Principle, the number of different choices is 10 × 15 × 7 = 10500.

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