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Total no =6 So 6C3= 6x5x4x3x2x1/3x2x1 = 6x5x4 = 120 answer
1 5 1
They can be arranged in
1st digit in 6 ways
2nd digit in 5 ways
3rd digit in 4 ways
so total number of ways are
120 ways
1 5 1
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