Question

Which year shows the highest change in revenue obtained from journals?

• A. 2013
• B. 2014
• C. 2015
• D. 2016

Hint:

When asked about "highest change," always check absolute year-to-year differences, not just increases. Even a small fall may give the maximum change.

Answer 1

The Correct Option is C

Step 1: Read journal revenues from the graph. 
- 2014: $\;45$ lakh 
- 2015: $\;45$ lakh 
- 2016: $\;44$ lakh 
- 2017: $\;44$ lakh 

Step 2: Compute year-to-year changes. 
- Change from 2014 to 2015: $|45-45|=0$ 
- Change from 2015 to 2016: $|44-45|=1$ 
- Change from 2016 to 2017: $|44-44|=0$ 

Step 3: Identify maximum change. 
The largest change is $1$ (between 2015 and 2016). So the answer is 2015. \[ \boxed{2015} \]

Answer 2

Rather than comparing absolute differences between consecutive years, the same conclusion can be reached by comparing percentage changes, which is a more meaningful way to judge which year sees the "highest change".

Reading the values. From the graph, journal revenue reads 45 lakh (2014), 45 lakh (2015), 44 lakh (2016), 44 lakh (2017).

Computing percentage change year by year. \[ 2014\to2015:\ \frac{45-45}{45}\times100=0\%,\qquad 2015\to2016:\ \frac{44-45}{45}\times100\approx-2.22\%,\qquad 2016\to2017:\ \frac{44-44}{44}\times100=0\%. \] The only non-zero percentage change occurs in the transition starting at 2015 (moving into 2016).

1. Option 2013: No change data isolates 2013 as a turning point; ruled out.
2. Option 2014: The change moving out of 2014 (into 2015) is \(0\%\); ruled out.
3. Option 2015: The change moving out of 2015 (into 2016) is the only non-zero percentage change, about \(-2.22\%\) — this is the year showing the highest change.
4. Option 2016: The change moving out of 2016 (into 2017) is \(0\%\); ruled out.

Judged by percentage movement rather than raw difference, the year associated with the largest swing is still 2015.

So the correct answer is 2015.