1.

84) write the greatest 6 digio nubes hameig 3 differentdisits

Answer»

Since we have towrite the greatest 7-digit number having 3 different digits, we will pick upthe three greatest digits 7, 8, 9 out of thedigits0, 1, 2,3, 4, 5, 6,7, 8 ,9. Therefore, thegreatest 7-digit numberis 9999987.

greatest 7 digit no. having 3 different digits is 9999987



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