Are there students who not registered in both events, how many? 2. The Hair Company offers two brands of shampoo: brand H and brand S. 100 people were surveyed and their brand preferences are as follows: 50 people liked brand H and 35 people liked brand S. What is the maximum number of people who liked both H and S? What is the minimum number of people who liked both H and S? What is the minimum number of people who do not like any of the brand?





pls real answer​