Help me with this In a class of 30 students, 18 offer mathematics

(M), 15 offer science (S) and 13 offer english (€).
The number of students who offer all the three
subjects is equal to the number of students who
do not offer any of these subject. 10 students
offer both mathematics and english, 8 offer both
mathematics and science and 3 offers only
english and science. Determine: (i) the number
of students who offer all the three subjects (ii)
the number of students who offer only one
subject (iii) the number of learners who offer at
least two subject