You want to buy a high-end camera listed at $500 that is being sold at a 10% discount . The sales tax is 9.75%. Which will be a better price for you as a consumer: Applying the discount first and then the sales tax, or applying the sales tax first and then the discount?
Everyday, we run into quantitative challenges that defeat or intimidate us. Yet most of these problems require nothing more than basic arithmetic. Young and adult Americans alike often make basic math and statistical mistakes or choose bad numerical or financial options that cost them dearly, cut into a company's profit and decreases productivity.
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Hasan Z Rahim
Hasan Z. Rahim is a professor of mathematics and statistics at San Jose City College,
located in the heart of Silicon Valley, California.