There has been a successive increase of 25% and 20% in the price of petrol from the previous month. By how much %age a man should reduce his consumption so that his expenditure does not change?  Choices:
A) 33.33%
B) 50%
C) 66.66%
D) 15%
E) 75%
Earlier price of petrol = x   Current price of petrol = (5/4) * (6/5) * x = 1.5x   Let earlier Consumption = 100 gallons   Earlier: x dollars --&gt; 100 gallons   Now: 1.5x dollars --&gt; 100 gallons --&gt; x dollars --&gt; 100*2/3 = 66.66 gallons   Therefore the person should reduce his consumption by 100 - 66.66 = 33.33 gallons if his expenditure has to remain same.   33.33%nswer: 33.33%
<result>A</result>
There has been a successive increase of 25% and 20% in the price of petrol from the previous month. By how much %age a man should reduce his consumption so that his expenditure does not change?