The manufacturer of tyres is offering a 20% discount on the price of its tubeless tyres. Some retailers are offering additional discounts. If a retailer offers an additional 20% discount, then what is the total discount available at that retailer?	Choose the correct choice from the following
A) 10%	B) 25%	C) 28%	D) 30%	E) 36%
Discount = 1-0.8*0.8=1-0.64= 
<gadget id="calculator">1-0.64</gadget>
<output>0.36</output>
0.36=36%   Answer choice 36%
<result>E</result>
The manufacturer of tyres is offering a 20% discount on the price of its tubeless tyres. Some retailers are offering additional discounts. If a retailer offers an additional 20% discount, then what is the total discount available at that retailer?