This is a problem of finding a discount price when the original price and discount rate are known.

As can be seen from the title, the original price of this product 168 yuan is now 10% off. The "10% discount" here means selling the product at 10% of the original price, or 0. 1 times the original price.

So 168 yuan gets a 10% discount, so it is calculated as168 * 0.1=16.8 yuan.