A man purchases an electric heater whose printed price is 160 if he received two successive discounts of 20% and 10% he paid: Choose the correct choice.
A) Rs.620
B) Rs. 115.20
C) Rs.450
D) Rs.120
E) Rs.140
Explanation:   Price after 1st discount = 80% of Rs. 160 = Rs. 128   Price after 2nd discount = 90% of Rs. 128 = Rs. 115.20   ANSWER:Rs. 115.20
<result>B</result>
A man purchases an electric heater whose printed price is 160 if he received two successive discounts of 20% and 10% he paid: