in the class of 50 students, 30 speak tamil and 40 speak telugu. what is the lowest possible number of students who speak both the languages? Choose the correct choice from the following answers
A) 8 B) 10 C) 20 D) 30 E) 32
<gadget id="calculator">40 + 30</gadget>
<output>70</output>

<gadget id="calculator">70 - 50</gadget>
<output>20</output>

<result>C</result>
in the class of 50 students, 30 speak tamil and 40 speak telugu. what is the lowest possible number of students who speak both the languages?
subtract(add(40, 30), 50)
let the student who speaks tamil - x let the student who speaks telugu - y as ( xuy ) - ( xny ) = total 30 + 40 - ( xny ) = 50 = 20 c )