A single discount % equal to three successive discounts of 30%, 20% and 10%. Choose the correct choice.
A) 49.8	B) 49.5	C) 49.3	D) 49.6	E) 49.1
Explanation:   Let the initial price be 100.   30% discount on 100 is 30   (100 – 30) = 70   20% discount on the 70 is 14   (70 – 14) = 56   10%discount on the 56 is 5.6   So the answer is   30 + 14 + 5.6= 
<gadget id="calculator">  30 + 14 + 5.6</gadget>
<output>49.6</output>
49.6   Answer: 49.6
<result>D</result>
A single discount % equal to three successive discounts of 30%, 20% and 10%.