A magazine seller has 500 subscribers and collects annual subscription charges of Rs 300/- per subscriber. She proposes to increase the annual subscription charges and it is believed that for every increase of Rs 1/-, one subscriber will discontinue. What increase will bring maximum income to her? Make appropriate assumptions in order to apply derivatives to reach the solution. Write one important role of magazines in our lives.

A magazine seller has 500 subscribers and collects annual subscription

1.	A magazine seller has 500 subscribers and collects annual subscription charges of Rs 300/- per subscriber. She proposes to increase the annual subscription charges and it is believed that for every increase of Rs 1/-, one subscriber will discontinue. What increase will bring maximum income to her? Make appropriate assumptions in order to apply derivatives to reach the solution. Write one important role of magazines in our lives.
Answer» A magazine seller has 500 subscribers and collects annual subscription charges of Rs 300/- per subscriber. She proposes to increase the annual subscription charges and it is believed that for every increase of Rs 1/-, one subscriber will discontinue. What increase will bring maximum income to her? Make appropriate assumptions in order to apply derivatives to reach the solution. Write one important role of magazines in our lives.