question_answer

In an examination 62% of student failed in science and 52% failed in mathematics and 27% failed in both. The percentage of those who have passed in both the subject is -

A)  13%                            

B)  40%

C)  25%                            

D)  35%

Correct Answer: A

Solution :

% of student failed in Science \[=62%\] % of student failed in Mathematics \[=52%\] % of student failed in both subject \[=27%\] % of passed student \[=\,\,100-(35+27+25)\] \[=\,100-87=\underline{\mathbf{13%}}\]