1. What is the overall average of marks in the four subjects in the year 2009? A. 63 B. 64 C. 65 D. 60 Answer & Solution Discuss in Board Answer & Solution Answer: Option D Solution: $$\eqalign{ & \text{Average in four subjects,} \cr & = \frac{56+68+68+48}{4} \cr & = \frac{240}{4} \cr & = 60 \cr} $$
2. Supposing that there were 40 students in science in the year 2009. How much total of marks did they receive combined together? A. 2800 B. 2720 C. 2560 D. 3000 Answer & Solution Discuss in Board Answer & Solution Answer: Option B Solution: Total marks = 40 × 68 = 2720
3. In which year, the difference between the highest and the average marks in Maths was maximum? A. 2009 B. 2010 C. 2007 D. 2008 Answer & Solution Discuss in Board Answer & Solution Answer: Option C Solution: Difference in 2007 is 34 which is maximum.
4. In which year, the difference between the highest and the average marks in Social Science was least? A. 2009 B. 2010 C. 2007 D. 2008 Answer & Solution Discuss in Board Answer & Solution Answer: Option D Solution: Difference in 28 is minimum in 2008 i.e. 8.
