SOLUTION: Mrs.Rossi wrote the following clues for a mystery numbers
it is a 4-digit number
the tens are double the ones
the thousands are double the tens
the sum of the digits is 19
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Question 1111472: Mrs.Rossi wrote the following clues for a mystery numbers
it is a 4-digit number
the tens are double the ones
the thousands are double the tens
the sum of the digits is 19
what number is it
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Mrs.Rossi wrote the following clues for a mystery numbers
it is a 4-digit number = a10^3+b10^2+c10+d
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the tens are double the ones: c = 2d
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the thousands are double the tens:: a = 2c = 4d
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the sum of the digits is 19 :: a + b + c + d = 19
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what number is it?
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Substitute for a and c to get:
4d + b + 2d + d = 19
b + 7d = 19
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d = 2 ; b = 5 ; a = 4 ; a = 8
Ans:: 8542
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Cheers,
Stan H.
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