6.I.do not like cottee.In an examination 50% of the students passed in Mathematics and 70% of studentspassed in Science while 10% students failed in both subjects. 300 students passed inboth the subjects. Find the total number of students who appeared in the examination,if they took examination in only two subjects.

6.I.do not like cottee.In an examination 50% of the students passed in

1.	6.I.do not like cottee.In an examination 50% of the students passed in Mathematics and 70% of studentspassed in Science while 10% students failed in both subjects. 300 students passed inboth the subjects. Find the total number of students who appeared in the examination,if they took examination in only two subjects.
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