UPSC Government Jobs Exams Category

There are 6 items in columns A and 6 items in column B. A student is asked to match each item in column A with an item in column B. How many possible answers (correct or incorrect) are there to the question?

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UPSC Other Question
There are 3 different rings to be worn in four fingers with at most one in each finger. In how many ways can this be done? How many 3-letter words can be made using the letters of the word ORIENTAL?