How many times the increase in expenditure in a year exceeded by more than 15\% as compared to previous year?
Consider the following data:<br>The expenditure (in lakhs of rupees) of a company for the years 2011 to 2017 is as under:<br><table> <thead> <tr> <th>Year</th> <th>Expenditure</th> </tr> </thead> <tbody> <tr> <td>2011</td> <td>13.8</td> </tr> <tr> <td>2012</td> <td>15.4</td> </tr> <tr> <td>2013</td> <td>10.4</td> </tr> <tr> <td>2014</td> <td>13.1</td> </tr> <tr> <td>2015</td> <td>15.8</td> </tr> <tr> <td>2016</td> <td>17.2</td> </tr> <tr> <td>2017</td> <td>19.4</td> </tr> </tbody> </table>
- A. 2 ✓
- B. 3
- C. 4
- D. 5
Correct Answer: A. 2
Explanation
Checking year-over-year increases: 2012 is \approx 11.6\%, 2014 is \approx 25.9\%, 2015 is \approx 20.6\%, 2016 is \approx 8.8\%, 2017 is \approx 12.8\%. Only 2014 and 2015 exceed 15\%. Thus, it happened 2 times.
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