in a class of 150 students 50 students passed in mathematics, 40 students failed in physics and 20 students failed in both subjects. how many students passed in both subjects?
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40 students passed in both subjects
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0
Answer:
10
Step-by-step explanation:
Given : Total number of students = 150
Total number of students that passed math = 50
Total number of student that failed Physics = 40
Total number of students that failed both = 20
To Find : how many students passed in both subjects?
Solution:
Number of students that failed math = 150 - 50 = 100
Number of students that failed Physics= 40
Number of students that failed both = 20
Number of students that failed 1 subject = 100 + 40 - 20 = 120
Number of students that failed 1 subject = 120
Total number of students that failed both = 20
Total number of students that passed both = 150 - 120 - 20 = 10
Hence the students passed in both subjects are 10
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