In the class of 100 students, 50 speak Hindi and 70 speak English. What is the lowest possible number of students who
speak both the languages?
Choices
A) A)8
B) B)10
C) C)20
D) D)30
E) E)32
let the student who speaks hindi-x   let the student who speaks english-y   as (xuy)-(xny)=total   50+70-(xny)=100   =20   20)
<result>C</result>
In the class of 100 students, 50 speak Hindi and 70 speak English. What is the lowest possible number of students who
speak both the languages?