Price discrimination means when same type of goods or services are sold at different prices from the same provider.
For example- We can see price discrimination in the form of coupons. Few people get 20% off coupon at some restaurant and others get 10% discount coupons.
Other example is - At some places, females entry is free but males have to pay some amount to get entry.
Price discrimination is when someone changes the price due to what someone looks like. If a man with old clothes goes to a lamburgine car dealership and the people ask him not to touch the cars. And no one helps him to look at a car because of what he looks like that would be price discrimination.