Question

The expression for a 3 digit number, when the hundred digit is a ,tje ten digit is b and the units sit is c .
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Answer 1

Answer:

the sum of its digit is 18

a+b+c = 18

6b/6= 18/6

b= 3

a= 2b,so a= 6

c= 3b,so c= 9

so, the three digit number must be 639.