SOLUTION: A little Kangaroo is playing with his calculator. He starts with the number 12. He multiplies or divides the number by 2 or 3 (if possible) 60 times total. Which of the followin

Question 1063430: A little Kangaroo is playing with his calculator. He starts with the number 12. He multiplies or divides the number by 2 or 3 (if possible) 60 times total. Which of the following results can he not obtain?
A. 12 B 18 C 36 D 72 E 108
Answer by math_helper(2461) (Show Source): You can put this solution on YOUR website!
I think the answer is . Here's the logic:
A. 12 = 12 / 2 * 2 (even number of operations, so in 60 operations we can also reach 12)
B. 18 = 12 / 2 * 3 (even)
C. 36 = 12 /2 * 3 * 2 (it takes an odd number of operations to go from 12 to 36)
D. 72 = 12 * 2 * 3 (even)
E. 108 = 12 * 3 * 3 (even)

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