GMAT Practice Question Set #30 (Question 88-90)

Problem Solving Question #90: Sarah Sales Tax  
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Sarah paid a sales tax of 8 percent on her purchase. If the sales tax had been only 5 percent, she would have paid $12 less in sales tax on her purchase. What was the total amount that Sarah paid for her purchase including sales tax?

(A)

$368

(B)

$380

(C)

$400

(D)

$420

(E)

$432

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