Of the 200 stamps in a collection, 90 are foreign and 50 are more than 10 years old. If 20 stamps are both foreign and more than 10 years old, how many stamps are neither foreign nor more than 10 years old?
Choose the most appropriate option
A) 30
B) 80
C) 100
D) 130
E) 150
20 stamps are both foreign and more than 10 years old.   70 stamps are foreign only.   30 stamps are 10 years old only.   The number of remaining stamps is  200 - (20+70+30)= 
<gadget id="calculator"> 200 - (20+70+30)</gadget>
<output>80</output>
80   The answer is 80.
<result>B</result>
Of the 200 stamps in a collection, 90 are foreign and 50 are more than 10 years old. If 20 stamps are both foreign and more than 10 years old, how many stamps are neither foreign nor more than 10 years old?