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12-01-2018
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An item costs $460 before tax, and the sales tax is $13.80 . find the sales tax rate.

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13-01-2018

Cost price(CP)=$460
Tax amount(A)=$13.80
Tax%(T%)=?

It is clear that:
↪Tax amount=T% of CP
↪A=T%×460
↪13.80=(T×460)/100
↪13.80=4.6T
↪T=13.8/4.6
↪T=3
T%=3%➡ANS

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