JEE Advanced Mathematics: Permutation & Combination Practice Questions
3 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.
- Q1.How many 3-digit numbers can be formed using the digits 1, 2, 3, 4, and 5 if repetition is allowed?Easy
- Q2.How many ways can 5 distinct books be arranged on a shelf?Easy
- Q3.In how many ways can 7 different books be arranged on a shelf such that two specific books are never together?Medium
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