In a class of 50 students, 20 study Mathematics, 25 study Science, and 10 study

Practice Questions

Q1
In a class of 50 students, 20 study Mathematics, 25 study Science, and 10 study both. How many students study only Science?
  1. 15
  2. 25
  3. 10
  4. 5

Questions & Step-by-Step Solutions

In a class of 50 students, 20 study Mathematics, 25 study Science, and 10 study both. How many students study only Science?
  • Step 1: Identify the total number of students studying Science, which is 25.
  • Step 2: Identify the number of students studying both Mathematics and Science, which is 10.
  • Step 3: To find the number of students studying only Science, subtract the number of students studying both from the total number studying Science.
  • Step 4: Perform the calculation: 25 (total Science students) - 10 (students studying both) = 15.
  • Step 5: Therefore, the number of students who study only Science is 15.
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