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A seven digit number made up of all dist...

A seven digit number made up of all distinct digits 8,7,6,4,2,x and y is divisible by 3. Then possible number of order pair (x,y) is

A

4

B

8

C

2

D

none of these

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The correct Answer is:
B
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ML KHANNA-PERMUTATIONS AND COMBINATIONS -SET-3
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