By increasing the price of entry ticket to a fair in the ratio 3:7, the number of visitors to the fair has decreased in the ratio 16:13. In what ratio has the total collection increased or decreased?
Let cost of original ticket = Rs 3 and and number of visitors = 160
=> Original revenue = 3 $$\times$$ 160 = Rs 480
After increase in cost of ticket
New cost of ticket = Rs 7 and number of visitors = 130
=> New Revenue = 7 $$\times$$ 130 = Rs 910
Since, new revenue is greater than original revenue, thus total collection has increased.
$$\therefore$$ Increase of total collection ratio = $$\frac{480}{910}$$ = 48Â : 91
=> Ans - (B)
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