If the price of petrol is increased by 20% and subsequently by 40%. If the original price was Rs25 per litre then what is then the final price per litre? Choose the most appropriate option:
A) 42
B) 45
C) 48
D) 40
E) none
Answer   Final Price = 25 x (1 + 20/100) x (1 + 40/100)   =Rs.25 x 1.2 x 1.4   = Rs. 42   Correct Option: 42
<result>A</result>
If the price of petrol is increased by 20% and subsequently by 40%. If the original price was Rs25 per litre then what is then the final price per litre?