In the youth summer village there are 175 people, 100 of them are not working,75 of them have families and 125 of them like to sing in the shower. What is the largest possible number of people in the village, which are working, that don't have families and that are singing in the shower?
Choose one.
A) 70
B) 75
C) 85
D) 80
E) 100
total =175   not working =100   having family=75   like to sing in shower = 125   working=175-100= 
<gadget id="calculator">175-100</gadget>
<output>75</output>
75   not having family= 175-75= 
<gadget id="calculator">175-75</gadget>
<output>100</output>
100   like to sing in shower= 100   largest possible number is the lowest possible among the above   Thus 75   75
<result>B</result>
In the youth summer village there are 175 people, 100 of them are not working,75 of them have families and 125 of them like to sing in the shower. What is the largest possible number of people in the village, which are working, that don't have families and that are singing in the shower?