In a classroom, 14 students like Mathematics, 10 students like Science, and 4 students like both subjects. How many students like either Mathematics or Science?

A survey conducted in a small community shows that 80 people use brand A soap, 50 people use brand B soap, and 30 people use both brands. How many people in the community use at least one of the two brands?

In a survey of a high school, 70 students say they participate in sports, 50 students are involved in music, and 20 students are involved in both sports and music. How many students are involved in either sports or music?

In a box, there are 15 red marbles, 20 blue marbles, and 10 marbles that are both red and blue. If a marble is drawn at random, how many marbles would represent the total number of different possibilities (red or blue)?

In a survey of 200 people, 120 people like coffee, 150 people like tea, and 40 people like both coffee and tea. How many people like either coffee or tea?

During a month, 200 people visited a museum, 125 people visited a library, and 50 people visited both the museum and the library. How many different people visited either the museum or the library during that month?

A poll shows that 150 people enjoy reading fiction, 100 people enjoy reading non-fiction, and 30 people enjoy reading both genres. How many people enjoy reading either fiction or non-fiction?

In a garden, 40 types of flowers are roses, 35 types of flowers are tulips, and 10 types of flowers are both roses and tulips. How many types of flowers are either roses or tulips?

In a small town, 90 residents own a cat, 80 residents own a dog, and 25 residents own both a cat and a dog. How many residents own either a cat or a dog?

A club has 60 members who play chess, 30 members who play basketball, and 15 members who play both chess and basketball. How many members are there who play either chess or basketball?