A car parking company has 500 subscribers and collects fixed charges of Rs.300 per subscriber per month. The company proposes to increase the monthly subscription and it is believed that for every increase of Re.1, one subscriber will discontinue the service. What increase will bring maximum income of the company? What values are driven by this problem?
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answer would be increasing 100 subscribers.Whenever two numbers which are multiplied are closer by some value,their product increases.for example 1x5=5,(1+1)x(5-1)=8,(1+2)x(5-2)=9 which is higher.so by decreasing 100 subscribers and increasing 100rs I.e 400x400=160000 will be highest
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