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?

A. increased in the ratio 52 : 63
B. increased in the ratio 36 : 91
C. decreased in the ratio 63 : 52
D. decreased in the ratio 91 : 36
Answer» D. decreased in the ratio 91 : 36


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