electrospirit6305 electrospirit6305

17-08-2022
Mathematics

contestada

How many 6-digit numbers can be formed such that the sum of all the digits is equal to 2?

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LammettHash LammettHash

17-08-2022

Such a number must consist of four 0s and two 1s, with 1 as the leading digit. There 5 choices of places for the remaining 1, so there are only 5 such numbers.

110 000

101 000

100 100

100 010

100 001

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