# NIELIT 2019 Feb Scientist D - Section C: 7

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In an examination, $52\%$ of the candidates failed in English, $42\%$ in Mathematics and $17\%$ in both. The number of those who passed in both the subjects, is :

1. $83\%$
2. $23\%$
3. $64\%$
4. $55.5\%$

% of students who failed in at least 1 subject = n(EUM)

n(EUM) = n(E) + n(M) – n(E$\cap$M) = 52 + 42 – 17 = 77%

% of students who passed in both the subjects = 100 – 77 = 23%

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