The price of apple in the year 2010 has increased by 15% from that of the previous year.In 2011 the price has previous year. In 2011 the price has decreased by 10% .In 2011, what was the increase in price respect to that of 2009?
Created: 6 years ago |
best des
Here ,
Increase x =15% (+)
Decrease y = 10% (-)
We know
= x±y± xy/100
= 15-10- (15x10)/100
= 5-1.5
= 3.5%
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