In an examination 67% of the students in Mathematics and 76% of the students in science passed. If 19% of the students failed in both the subjects and 310 students passed then the total number of students will be
A
300
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B
400
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C
500
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D
600
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Solution
The correct option is C500 % of the students failed in Maths =100−67=33% % of the students failed in Sciences =100−76=24% and % of the students failed both subjects =19% ∴% of the students passed in both the subjects =[100−(33+24−19)]% =62% ∴ Total number of students =100×31062=500