2 votes 2 votes The number of students who take both the subjects mathematics and chemistry is 30. This represents 10% of the enrolment in mathematics and 12% of the enrollment in Chemistry. How many students take atleast one of these two subjects? Revathy Sudheesh asked Oct 9, 2017 Revathy Sudheesh 4.5k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes | M and C | = 30 |M| = 30*100/10 = 300 |C| = 30*100/12 = 250 students take at least one of these = students taking M + students taking C - students taking both = 300+250-30 = 520 Sankaranarayanan P.N answered Oct 9, 2017 Sankaranarayanan P.N comment Share Follow See 1 comment See all 1 1 comment reply Revathy Sudheesh commented Oct 10, 2017 reply Follow Share Thanks 0 votes 0 votes Please log in or register to add a comment.