Roller skates cost a retailer $120.00 less 20%, 10%. The retailer sold them for $150.00. What was the rate of mark-up on cost?

Name: Roller skates cost a retailer $120.00 less 20%, 10%. The retailer sold them for $150.00. What was the rate of mark-up on cost?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The cost to the retailer after discounts is $120 * 0.8 * 0.9 = $86.40. The mark-up on cost is ($150 - $86.40) / $86.40 = 0.736 or 73.6%.

Roller Skates Cost a Retailer $120