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February 28, 2015

February 28, 2015

Posted by **Amanda** on Thursday, May 14, 2009 at 10:30pm.

$42,000, minus trade discounts of 30/20/15. Calculate the amount of the trade discount

on the purchase.

A. $19,992 C. $23,520

B. $22,008 D. $29,400

could someone help me understand how to solve this problem

- math -
**Reiny**, Thursday, May 14, 2009 at 11:00pmafter the first discount of 30% you will have 70% left to pay, or 42000(.7)

then after another discount of 20% you will have to pay 80% or the above or

42000(.7)(.8)

and finally after another 15% you have to pay 85% of the above or

42000(.7)(.8)(.85) = 19992

- another look , math -
**Reiny**, Thursday, May 14, 2009 at 11:06pmI just read the question again.

the answer I left you with would be the final cost, but it asked for the discount

so the discount would be

42000 - 19992 = 22008 or (B)

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