Question-1 Data on 450 candidates, who took an examination in Social Science, Mathematics and Science is given below
| Passed in all the subjects | 167 |
| Failed in all the subjects | 60 |
| Failed in Social Sciences | 175 |
| Failed in Mathematics | 199 |
| Failed in Science | 191 |
| Passed in Social Sciences only | 62 |
| Passed in Mathematics only | 48 |
| Passed in science only | 52 |
How many passed in Mathematics and at least one more subject?
A 242
B 203
C 210
D 170
E 94
Explanation
B (203)
Candidates passed in Maths and at least one more subject =(21+15+167)=203
Question-2 How many failed in Social Sciences Only?
A 25
B 20
C 15
D 21
E 35
Explanation
C (15)
failed in social science =175−(60+52+48)=15
Question-3 How many failed in one subject Only?
A 64
B 61
C 152
D 135
E 56
Explanation
B (61)
Failed in one subject only = candidates passed in all subjects + candidates failed in all the subjects + candidates passed in one subject only) =450−(167+25+21+15)=61
