The price of gasoline in the area where the Smith family lives is scheduled to increase by 5% next year. Since the Smith family cannot afford an increase in their fuel bill, how much will they have to reduce consumption to keep their cost the same?  Select the correct option:
A) 6.14%	B) None	C) 5%	D) 2.45%	E) 4.76%
Solution: Let the current fuel expense be represented by Rs. 100.   The cost of gasoline rises 5%. So, to buy same amount of fuel, they need to increase their expense,   = (100 + 5% of 100) = Rs. 105.   But, they want to keep fuel expense the same, so they have to cut Rs. by 5 to keep it to Rs. =100.   The % decrease in consumption is,   (5/105)*100 = 4.76%.   Mental Calculation Method;   100-----5%↑---→105------X%↓---→100.   Here, X = (5/105)*100 = 4.76%.   Answer: Option 4.76%
<result>E</result>
The price of gasoline in the area where the Smith family lives is scheduled to increase by 5% next year. Since the Smith family cannot afford an increase in their fuel bill, how much will they have to reduce consumption to keep their cost the same?