how many natural numbers are there between 2000 and 7000 that can be formed using the digits1,2,5,6,8,9
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1296
Step-by-step explanation:
All natural numbers between 2000 and 7000 are 4 digit numbers.
So, number of digits = 4
No. of available digits = 6
We have to choose 4 from 6.
So. no of natural numbers = 6×6×6×6
= 1296
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