<human>:  Eighteen hours ago, Beth and I took 100 photographs of our project. Today, Beth and I will take 20% fewer photographs of the same project. If we were to take 300 photographs of the project, how many photographs would we take to reach the target?
<bot>: How many fewer photographs have been taken today? ** If you took 100 photographs of the project 18 hours ago, and today 20% few photographs have been taken, then 20/100*100 = 20 fewer photographs of the project have been taken today.
How many photographs have been taken today? ** The total number of photographs of the project that have been taken today is 100-20 = <<100-20=80>>80
How many photographs have been taken so far? ** So far, you've taken 80+100 = <<80+100=180>>180 photographs of the project.
How many photographs do you need to take to reach the target? ** Since the target number of photographs is 300, the number of photographs that you need to take to reach the target is 300-180 = <<300-180=120>>120
#### 120