If the price of a TV is first decreased by 20% and then increased by 40%, then the net change in the price will be : Choose the correct choice from the following choices
A) 4% increase B) 12% increase C) 10% decrease D) 6% increase E) None of these
Explanation :   Solution: let the original price be Rs. 100.   New final price = 140% of(80% of 100) =Rs. 140/100 * 80/100 * 100 = Rs. 112.   .'. Increase = 12%   Answer : 12% increase
<result>B</result>
If the price of a TV is first decreased by 20% and then increased by 40%, then the net change in the price will be :