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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

One class consists of 40 students. the chances of a student passed the math test was 0.4. the chances of a student pass the test of physics is 0.2. specify the number of students who pass the test math or physics.

Let A be the student those pass in math let B be the student those pass in physics total no of student=40 0.4 chances of passes in math=no. of student passes math =0.4 total no.of student A/40=0.4 A=0.4×40=16 0.2 similarly B/40=0.2⇒B=40×0.2=8

n(A)=16 n(B)=8 n(AUB)=n(A)+n(B)-n(AnB) 16+8-0 24 are student who pass the test physics or math

the number of students who pass the test math or physics.