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Question
How many numbers greater than 24000 can be formed by using digits 1, 2, 3, 4, 5 when no digit is repeated
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Solution
The correct option is C 84
The digits are 1, 2, 3, 4, 5. We have to form number greater than 24000.
Required number will be = (Total) - (Those beginning with 1) - (Those beginning with 21) - (Those beginning with 23)
=5!−4!−3!−3!=120−24−6−6=84
The digits are 1, 2, 3, 4, 5. We have to form number greater than 24000.
Required number will be = (Total) - (Those beginning with 1) - (Those beginning with 21) - (Those beginning with 23)
=5!−4!−3!−3!=120−24−6−6=84
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