Question 1026720
A 2-digit number , its unit digit is twice its tens digit.
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So it's either 12, 24, or 36.
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...the product of the two digits equals one third of the number.
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The product of the digits of 12 is 1x2 = 2, But 2 is not 1/3 of 12.

The product of the digits of 24 is 2x4 = 8, and 8 is 1/3 of 24.

So that's the answer!

[No need to consider 36. For its product of digits is 18 which 
isn't 1/3 of 36, for it's 1/2 of 36.]

Edwin</pre>