Question

Which is better offer.three successive discount of10%,10%and30%or three successive discount of 40%,5%and5%

Answer 1

Answer:

Step-by-step explanation:

Formula for calculating successive discount:

( a+b - ab/100 )

So first let's take case of 10%, 10% and 30% three successive discounts:

= 10+10 - 10*10/100

= 20-1 = 19%

19+30 - 19 *30/100

=49 - 5.7  = 43.3 %         ----------------------(i)

Now let's take the case of three successive discount of 40%, 5% and 5%.

= 40+5 - 40 * 5/100

= 45 - 2= 43 %

= 43+5 - 43*5/100

= 48 - 2.15 = 45.85 % ---------------------(ii)

Thus, the second discount (ii) is better than the first (i)