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Question
Number of numbers between 400 and 1000 that can be formed with digits 2, 3, 4, 5, 6 and is [ repetition of digits is not allowed]
Number of numbers between 400 and 1000 that can be formed with digits 2, 3, 4, 5, 6 and is [ repetition of digits is not allowed]
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Solution
The correct option is A 75
we have to make a 3 digit no.we cannot take 2,3 in hundred place since we want no. greater than 400therefore no. of ways will be 3×5×5=75
we have to make a 3 digit no.
we cannot take 2,3 in hundred place
since we want no. greater than 400
therefore no. of ways will be 3×5×5=75
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