Sash143 wrote:

Bunuel wrote:

The manufacturer’s suggested retail price (MSRP) of a certain item is $60. Store A sells the item for 20 percent more than the MSRP. The regular price of the item at Store B is 30 percent more than the MSRP, but the item is currently on sale for 10 percent less than the regular price. If sales tax is 5 percent of the purchase price at both stores, what is the result when the total cost of the item at Store B is subtracted from the total cost of the item at Store A?

A. $0

B. $0.63

C. $1.80

D. $1.89

E. $2.10

This question is almost same, except for the last part of the question. Source: ManhattanPrep

The manufacturer’s suggested retail price (MSRP) of a certain item is $60. Store A sells the item for 20 percent more than the MSRP. The regular price of the item at Store B is 30 percent more than the MSRP, but the item is currently on sale for 10 percent less than the regular price.

If sales tax is 5 percent of the purchase price at both stores, how much more will someone pay in sales tax to purchase the item at Store A?A) $0

B)$0.09

C)$0.18

D)$0.30

E)$1.80

Please help me understand the last part of the question.

The last part asks to calculate the difference in sales tax amount i.e [ 5% of purchase price at store A - 5% of purchase price at store B ]

After basic calculations one can easily find the purchase prices at store A and B.

The purchase price at store A = 72

Sales tax amount at store A = 5% of 72 = 3.60

The purchase price at store B = 70.2

Sales tax amount at store B = 5% of 70.2 = 3.51

5% of purchase price at store A - 5% of purchase price at store B = 3.60-3.51 = 0.09 (Ans)