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lesantik
[10]
3 years ago
6
how many different two-digit numbers greater than 50 can be formed from the digits 3,6,7, and 9 of repetition of digits is allow
ed?
Mathematics
Answer
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1
answer:
nalin
[4]
3 years ago
8
0
First of all the repeated digits numbers are 66,77 and 99 Total 3
Numbers beginning with 6 Total 3 (63,67 and 69).
Numbers begin with 7 Total3
and begin with 9 Total 3.
answer is 12
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