Question

2.
b) at least three of them are in the wrong envelopes.
The students in a hostel were asked whether they had a IV. set or a computer in their rooms. The
result showed that 650 students had a TV set, 150 did not have T.V. set, 175 had a computer and 50
had neither a TV set nor a computer, find the number of students who
i) live in the hostel
ii) have both a T.V. set and a computer
iii) have only computer​

Answer 1

Answer:

1. total no. of students live in hostel=650+175+50=875

2. 875-150-50=675

3.275