Out of the 200 cookies that Javier baked from the recipe he learned online, his wife took 30%, and his daughter took 40 from the remaining cookies. If he ate half of the remaining cookies, how many cookies did they not eat?
From the 200 cookies, Javier's wife ate 30/100*200 = <<30/100*200=60>>60
After the wife ate 60 cookies, the number of cookies that remained was 200-60 = <<200-60=140>>140
The daughter also ate 40 cookies leaving 140-40 = <<140-40=100>>100 cookies.
If Javier ate half of the remaining cookies, he ate 1/2*100 = 50.
The number of cookies that remained is 100-50 = <<100-50=50>>50
#### 50