Question

which is one more favourable to the seller and by how much rupees 800 with 20% discount on the same amount which of the successive discount of 12% and 10%

Answer 1

Single discount of 20% is more favourable for the seller because if he sell it at successive discounts of 10 and 12 then it would be

10+12+10×12/100=23.2

So, he will get more profit in selling at 20% discount

Answer 2

800 with 20% discount,by rupees 6.40