1. By increasing the price of entry ticket to a fair in the ratio 9:13, the number of visitors to the fair has decreased in the ratio 7:4. In what ratio has the total collection increased or decreased?
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By: anil on 05 May 2019 02.09 am
Let cost of original ticket = Rs 9 and and number of visitors = 70 => Original revenue = 9 $$ imes$$ 70 = Rs 630 After increase in cost of ticket New cost of ticket = Rs 13 and number of visitors = 40 => New Revenue = 13 $$ imes$$ 40 = Rs 520 Since, new revenue is less than original revenue, thus total collection has decreased. $$ herefore$$ Decrease in total collection ratio = $$frac{630}{520}$$ = 63 : 52 => Ans - (C)
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