In an examination, every candidate took Chemistry or Mathematics or both
60% took Chemistry and 65% took Mathematics. The total number of
candidates was 30000. How many took both Mathematics and Chemistry.
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chemistry =60 percent
maths=65percent
total candidates= 30000
no. of students taking chemistry =60/100*30000=18000
no. of students taking maths
=65/100*30000=19500
total students taking chemistry and maths respectively =19500+18000=37500
students taking both maths and chemistry =37500-30000=7500
ans=7500
hope it helps
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