Class 12 students scoring (i) 95% and above (total 6000) and (ii) 90–95% (total 10000) from six Delhi schools A–F, with Girls:Boys ratio.
| School | 95%+ (%) | Girls:Boys |
|---|---|---|
| A | 13% | 11:5 |
| B | 18% | 5:7 |
| C | 17% | 3:5 |
| D | 8% | 7:1 |
| E | 24% | 5:4 |
| F | 20% | 5:3 |
| School | 90–95% (%) | Girls:Boys |
|---|---|---|
| A | 16% | 3:2 |
| B | 6% | 1:4 |
| C | 10% | 5:3 |
| D | 28% | 2:3 |
| E | 21% | 9:5 |
| F | 19% | 3:4 |
For school E, the difference between the number of boys who scored 95% and above marks and boys who scored between 90-95% marks is:
A115
B120
C110 ✓ Correct
D105
Correct answer: (C) 110
Explanation
The difference for school E is 110.
Boys of E scoring 95% and above are 24 percent of 6000 times 4 over 9, that is 640.
Boys of E scoring 90-95% are 21 percent of 10000 times 5 over 14, that is 750.
The difference is 750 minus 640.
This equals 110.
So school E has 110 more boys in the 90-95% band than in the 95%-and-above band.
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