Question

In a class 15 students like Maths. 20 students like English and 10 students like science. 5 students like all three subjects. If there are 50 students in the class, how many students like none of the three subjects?​

Answer 1

0 because 50-20-15-10-5 =0 all student like at least one of these subjects

Answer 2

Everyone likes a subject so 0 students like none.

15+10+20+5=50