SOLUTION: the hundreds digits of a three digits number is twice its ten digit. its tens digits is twice its ones digits. if the product of the digits is 64 final the three digits number
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Question 851495: the hundreds digits of a three digits number is twice its ten digit. its tens digits is twice its ones digits. if the product of the digits is 64 final the three digits number
Answer by harpazo(655) (Show Source): You can put this solution on YOUR website!
Hundreds digit = 4x
Tens digit = 2x
Ones digit = x
x*(2x)*(4x) = 64
8x^3 = 64
x^3 = 64/8
x^3 = 8
Take the cube root of both sides.
ciberoot(x^3) = cuberoot(8)
x = 2
Hundreds digit = 4(2) or 8.
Tens digit = 2(2) or 4.
Ones digit = 2.
The three digit number is 842.
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