Direction: Study the following pie-diagrams carefully to answer these questions

-
In the year 2008, the number of students studying Arts and Commerce together is what per cent of the number of studying these subject together in 2009?
-
- 76
- 79
- 82
- 85
Correct Option: D
In 2008, the number of students studying Arts and commerce together
= (12 + 22)/100 x 35000 = 34 x 350 = 11900
In 2009, the number of students studying Arts and Commerce together
= (11 + 24)/100 x 40000 = 35 x 400 = 14000
Hence, required percentage = 11900/14000 x 100 = 85%