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How many nos. between 400 & 1000 can be made with digits 2,3,4,5,6,0 if repetition of digits is allowed?

How many nos. between 400 & 1000 can be made with digits 2,3,4,5,6,0 if repetition of digits is allowed?

Grade:12

1 Answers

Badiuddin askIITians.ismu Expert
147 Points
11 years ago

Dear jee king

100th place can be filled by 3 numbers 4,5,6

10th and unit place can be filled by 6 ways

so total number =3*6*6

but this include number 400 as well which is not required so total number =3*6*6 -1

                                                                                                          = 107


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