Answers

2015-06-18T18:13:44+08:00
My guess is 50 because if you put 1 before it, it will become 150, and 150 divided by 50 is 3 which means 50x3=150 you or 5 because add one before it, it becomes 15 and 5x3=15
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2015-06-19T08:08:32+08:00
The answers are 5,50,500,500 etc.
because when you put 1before them
the new number will become 3 times
of the original number
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