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How many numbers greater than 1000000 ca...

How many numbers greater than 1000000 can be formed by using the digits 1,2,0,2,4,2,4?

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0,1,2,2,2,4,4
total numbers= `(7!)/(3!2!) - (6!)/(3!2!) `
`= (6!)/(3!2!)(7-1) = (6*5*4*3*2*1)/(3*2*1*2*1)*6`
`= 30*12= 360`
answer
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