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Since it is (3*9) * (0.5*6) = 81, just find the expression that equals 81 (D).

I guess the trick here (besides seeing "81" and picking A) is that some people will want to apply BOTH the "multiply by three" and "divide by two" operations to the numbers in the boxes in the answer choices, you you only apply one or the other, based on whether the number in the box is odd or even.

I still could not get why u are choosing 27, I can not find there any square. I got the answer 81, but can not move from there though...
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I still could not get why u are choosing 27, I can not find there any square. I got the answer 81, but can not move from there though...

The answer choices are written with squares around them. Choice A is 81 but there is a SQUARE around it. So choice A is not 81 but actaully 3*81. only 27 with square around it will give you 81. 27 with a square around it = 3*27=81, which is right