Correct Option: A
As per the given above table , we see
| Candidates qualified under science discipline in year 2006 ⇒ | 780 × 40 | = 312 |
100 |
| Candidates qualified under science discipline in year 2007 ⇒ | 650 × 42 | = 273 |
100 |
| Candidates qualified under science discipline in year 2008 ⇒ | 500 × 45 | = 225 |
100 |
| Candidates qualified under science discipline in year 2009 ⇒ | 45 × 620 | = 279 |
100 |
| Candidates qualified under science discipline in year 2010 ⇒ | 35 × 900 | = 315 |
100 |
| Candidates qualified under science discipline in year 2011 ⇒ | 42 × 850 | = 357 |
100 |
Required average difference = Average number of candidates qualified in Science year from 2009 to 20011 - Average number of candidates qualified in Science year from 2006 to 2008
| Required average difference = | | 1 | [(279 + 315 + 357) – (312 + 273 + 225)] = | 1 | | (951 – 810) |
3 | 3 |
