Let's say Jason invested x amount of money.

Since Jason started investing, he has earned the same amount he invested twice over in 5 months, meaning he has earned x+2*x=$90

This evaluates to 3x=$90

The total amount of money that Jason invested is x=$90/3

Jason invested x=$30

The total amount of money that Jason has earned from his investments is $90-$30=$<<90-30=60>>60

If he earned an equal amount of money from the investment in five months, his monthly returns is 60/5=$<<60/5=12>>12

# Answer

12
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<|im_start|>user
Since Jason started investing, he has earned the same amount he invested twice over in 5 months. If Jason's investment currently is worth $90, how much has he been earning per month from his investment assuming he has been earning an equal amount of returns each month?
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user
12
Since Jason started investing, he has earned the same amount he invested twice over in 5 months. If Jason's investment currently is worth $90, how much has he been earning per month from his investment assuming he has been earning an equal amount of returns each month?
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