<human>:  A tomato plant has 100 tomatoes. Jane picks 1/4 of that number for use in their house. After a week, she goes back and picks 20 more tomatoes, and the following week picks twice that number. What's the total number of fruits remaining on the tomato plant?
<bot>: How many tomatoes does Jane pick? ** When she picks 1/4 of the number of tomatoes, she goes home with 1/4*100 = <<1/4*100=25>>25 tomatoes.
How many tomatoes are left? ** The total number of tomatoes remaining will be 100-25 = <<100-25=75>>75 tomatoes.
How many tomatoes does Jane pick the following week? ** After picking 20 more tomatoes the following week, the number of tomatoes remaining is 75-20 = <<75-20=55>>55 tomatoes.
How many tomatoes does Jane pick the following week? ** The next week she picks twice the number she picked the previous week, that is 20*2 = <<20*2=40>>40 tomatoes.
How many tomatoes are left after the final picking? ** The total number of tomatoes remaining after the final picking is 55-40 = <<55-40=15>>15 tomatoes.
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