Question

answer for ths question

Answer 1

Let, M be the sudents who passed in math
and,
E be the students who passed in English.
given, n(M)=25, E=38
M U E=50, M intersection E=?

Therefore,
n(MUB)=n(M)+n(E)-M intersection E

50=25+38-M intersection E

M intersection E = 63 -50

M intersection E=13.

hence, 13 students passed in both Sub.

Answer 2

total students are 50
total passed students = (number of student passed in in maths + number student . passed in English ) - total student present in class
. = (25 + 38) -50
= (63 - 50 ) = 13 student passed in class
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