<human>:  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?
<bot>: How much money did Jason invest? ** Let's say Jason invested x amount of money.
How much money has Jason earned since he started investing? ** 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
How much money has Jason earned since he started investing? ** This evaluates to 3x=$90
How much money did Jason invest? ** The total amount of money that Jason invested is x=$90/3
How much money did Jason invest? ** Jason invested x=$30
How much money has Jason earned from his investments? ** The total amount of money that Jason has earned from his investments is $90-$30=$<<90-30=60>>60
How much money has Jason earned from his investment each month? ** If he earned an equal amount of money from the investment in five months, his monthly returns is 60/5=$<<60/5=12>>12
#### 12