A) 44% increase
B) 44% decrease
C) 66% increase
D) 75% increase
Correct Answer: A
Solution :
[a] Let the original price be x and sale be of y units. Then, the revenue collected initially \[y=x\times y\] Now, new price \[=0.8\times ,\] new sale \[=1.8\,y\] Then, new revenue collected \[=1.44xy\] % increase in revenue \[=\frac{0.44xy}{xy}\times 100=44%\] Shortcut Method Net effect \[=-\,20+80+\frac{(-20\times 80)}{100}\] \[=60-\,16=44%\]You need to login to perform this action.
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