If X×Y×Z is odd, then XY+YZ+XZ is ?
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Hello,
Multiplication of three odd numbers is always odd
for example 5*5*5=125 or 5*7*9=315
so for X*Y*Z to be odd X,Y and Z are individually odd numbers
The multiplication of two odd numbers is always a odd number
For example, 3*3=9, 3*5=15
And the sum of three odd numbers is always odd.
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