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Find the number of 4 - digit numbers tha...

Find the number of 4 - digit numbers that can be formed using the digits 1,2,5,6, 7. How many of them are divisible by i) 2 ii) 3 iii)4 iv) 5 v) 25.

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The correct Answer is:
divisible by `25=2xx6=12`.
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