Permutations & Combinations4 questions4 PYQ
Permutations & Combinations — JEE Maths Practice Questions & Solutions
4 questions on Permutations & Combinations with full step-by-step solutions, including past-year (PYQ) problems. Free to practice.
The number of seven-digit numbers that can be formed by using the digits and such that each digit is used at least once, is
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A box contains 5 blue, 6 yellow and 4 red balls. The number of ways of drawing 8 balls containing at least two balls of each colour is:
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Two players and play a series of games of badminton. The player who wins games first wins the series. Assuming no game ends in a draw, the number of ways in which player wins the series is
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The number of ways of forming a queue of boys and girls such that all the girls are not together, is
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