Question

In an examination 150 students secured first class in English or Mathematics. 115 students secured first class in Mathematics. How many students secured first class in English only

Answer 1

In english 150 students scored first class as in ques it is given that 150 student scored first class in english or maths, but in next line it is given that 115 students scored first class in maths. So now 150 student would have been scored first class in english...