does anyone understand this stuff?

A local Radio Shack Store wants to buy a new line of Plasma TV's. Manufacturer A offers chain discounts of 18/12, while Manufacturer B offers terms of 17/13. The single equivalent discount rate of ? is the best deal.

Question

does anyone understand this stuff?


A local Radio Shack Store wants to buy a new line of Plasma TV's. Manufacturer A offers chain discounts of 18/12, while Manufacturer B offers terms of 17/13. The single equivalent discount rate of ? is the best deal.

anonymous · Answer

so confused

anonymous · Answer

A dicount offered = (100-18)(100-12)/(100*100)
B discount offered = (100-17)(100-13)/(100*100)
calculate to get answer

anonymous · Answer

is that right?

anonymous · Answer

aah you are doing it wrong

anonymous · Answer

total discount offered by any manufecturer =(100-D1)/100 * (100-D2)/100 and so on
for example
if firstly someone offer 30% discount then 40% that means
(100-30)/100* (100-40)/100=0.70 * 0.60 =0.42
so total discount offered is " (100-42)=58% " rather than 30%+40%=70%
now solve it for your two cases and then compare them. . .

anonymous · Answer

A LOCAL RADIO SHACK WANTS TO BUY A NEW LINE OF PLASMA TT,UF THE MANUFACTURE OFFERS A CAHIN DISCOUNT OF 18/12? wHATIS THE SINGLE EQUIVlent rate