Answer:60
Step-by-step explanation:
Given,
1/2 contain chocolate chips
2/5 of those contain pecans with chocolate chips
According to question,
1/2*200=chocolate chips
100=chocolate chips
2/5*100=chocolate chips with pecans
2*20=chocolate chips with pecans
40=chocolate chips with pecans
Number of cookies that contain chocolate chips but not pecans
= 100-40
=60 (answer)
