1. By increasing the price of entry ticket to a fair in the ratio 7:17, the number of visitors to the fair has decreased in the ratio 9:5. In what ratio has the total collection increased or decreased?
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By: anil on 05 May 2019 02.14 am
Let cost of original ticket = Rs 7 and and number of visitors = 90 => Original revenue = 7 $$ imes$$ 90 = Rs 630 After increase in cost of ticket New cost of ticket = Rs 17 and number of visitors = 50 => New Revenue = 17 $$ imes$$ 50 = Rs 850 Since, new revenue is greater than original revenue, thus total collection has increased. $$ herefore$$ Increase of total collection ratio = $$frac{630}{850}$$ = 63 : 85 => Ans - (C)
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