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Which is the better offer:
Three successive discounts of 10%, 10%, and 30% or Three consecutive discounts of 40%,5%, and 5%? Enter the answer as an A or B letter.

Correct answer:

x = B

Step-by-step explanation:

a1=100%10%=110010=0.9 a2=100%30%=110030=0.7  r1=a1 a1 a2=0.9 0.9 0.7=1000567=0.567  b1=100%40%=110040=0.6 b2=100%5%=11005=0.95  r2=b1 b2 b2=0.6 0.95 0.95=0.5415  r2<r1  x=B

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