a*1000 + b*100 + c*10 + d
a = 2c
c = b-1
b = 5 then c = 4 and a = 8
so
8,54d
You said nothing about the ones digit.
My thousandths digit is twice the tenths digit. My tenths digit is one less than the hundredths digit. If my hundredths digit is 5, what's my number? January 5, 2016 by Sandra
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