In a class of 50 students, 20 study English, 25 study Mathematics, and 10 study
Practice Questions
Q1
In a class of 50 students, 20 study English, 25 study Mathematics, and 10 study both. How many students study only one subject?
35
25
15
45
Questions & Step-by-Step Solutions
In a class of 50 students, 20 study English, 25 study Mathematics, and 10 study both. How many students study only one subject?
Step 1: Identify the number of students studying English, which is 20.
Step 2: Identify the number of students studying Mathematics, which is 25.
Step 3: Identify the number of students studying both subjects, which is 10.
Step 4: Calculate the number of students studying only English by subtracting those who study both from those who study English: 20 - 10 = 10.
Step 5: Calculate the number of students studying only Mathematics by subtracting those who study both from those who study Mathematics: 25 - 10 = 15.
Step 6: Add the number of students studying only English and only Mathematics to find the total number of students studying only one subject: 10 + 15 = 25.
