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If x y z are positive integers and 3x = 4y = 7z, then the least possible value of x + y + z is
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If x y z are positive integers and 3x = 4y = 7z, then the least possible value of x + y + z is
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Jan 18, 2018
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If x y z are positive integers and 3x = 4y = 7z, then the least possible value of x + y + z is
Mathematics
high-school
Ted Mielczarek
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Ted Mielczarek
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The least possible value of x+y+z is 61.
this is how we find this,
if we find the LCM of 3,4 and 7 we get 84
= 3 x (4x7) = 4x(3x7) = 7x (3x4)
x+y+z = (4x7) + (3x7) + (3x4)
=28 +21+12
=61
Kishor Bikram Oli
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Jan 25, 2018
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Kishor Bikram Oli
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