If the price of an item is decreased by 50% and then increased by 20%, the net effect on the price of the item is
Choose the correct option:  A) A decrease of 99%  B) A decrease of 40%  C) A decrease of 1%  D) A increase of 1%  E) none
initially assume 100 rupees   50% discount in 100 gives price of 50 rupees   then 20% raise in 50 is only 10 rupees.   therefore total price =60 rupees.   hence 40% is the loss   ANSWER:A decrease of 40%
<result>B</result>
If the price of an item is decreased by 50% and then increased by 20%, the net effect on the price of the item is