SSAT Math Question 586: Answer and Explanation

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Question: 586

15. Lisa buys a silk dress regularly priced at $60, a cotton sweater regularly priced at $40, and four pairs of socks regularly priced at $5 each. If the dress and the socks are on sale for 20% off the regular price and the sweater is on sale for 10% off the regular price, what is the total amount of her purchase?

  • A. $90.00
  • B. $96.00
  • C. $100.00
  • D. $102.00

Correct Answer: C

Explanation:

Take this question in bite-sized pieces. The dress is originally priced at $60 and is 20% off. 20% of 60 is the same as saying (60) = = 12. Therefore, the discounted dress price is $60 - $12 = $48. Do the same to the other items. The cotton sweater is regularly $40 and is on sale for 10% off. (40) = = 4, so the discounted sweater price is $40 - $4 = $36. There are four pairs of socks for $5 each, and these are also 20% off. (5) = = 1, so the discounted price of each pair of socks is $5 - $1 = $4. There are four pairs, so multiply 4 by 4 to find the total for the socks on sale, which is $16. The question asks for the total, so find the sum: $48 + $36 + $16 = $100. The correct answer is (C).

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