In a family 19 people eat only vegetarian, 9 people eat only non veg., 12 people eat both veg and non veg.. How many people eat veg in the family? Options.
A) 20
B) 31
C) 9
D) 31
E) 21
Total people eat veg = only veg + both veg and non veg   Total= 19+12= 
<gadget id="calculator">19+12</gadget>
<output>31</output>
31   Answer= 31
<result>B</result>
In a family 19 people eat only vegetarian, 9 people eat only non veg., 12 people eat both veg and non veg.. How many people eat veg in the family?