Tahir 03/11/2016 in Class IXX Tuition, Mathematics(Class IXX Tuition), Sets
Apoorva 03/11/2016 in Class IXX Tuition, Mathematics(Class IXX Tuition), Sets
Shurbik 03/11/2016 in Class IXX Tuition, Mathematics(Class IXX Tuition), Sets
A 03/11/2016 in Class IXX Tuition, Mathematics(Class IXX Tuition), Sets
A survey of 200 students of a school, it was found that 120 study Mathematics, 90 study Physics and 70 study Chemistry, 40 study Mathematics and Physics, 30 study Physics and Chemistry, 50 study Chemistry and Mathematics an 20 none of these subjects. Find the number of students who study all the three subjects?

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Ramya 03/11/2016 in Class IXX Tuition, Mathematics(Class IXX Tuition), Sets
Two finite sets have m and n elements. The number of subsets of the first set is 112 more than that of the second set. What is the value of m and n respectively?