In the class of 40 students, 30 speak Hindi and 20 speak English. What is the lowest possible number of students who
speak both the languages?	Choose the correct choice
A) 10
B) 15
C) 20
D) 25
E) 30
let the student who speaks hindi-x   let the student who speaks english-y   as (xuy)-(xny)=total   30+20-(xny)=40   =10   10)
<result>A</result>
In the class of 40 students, 30 speak Hindi and 20 speak English. What is the lowest possible number of students who
speak both the languages?