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In a Class 52% students has passed in Mathematics, 40%
students has passed in Physics, 17% students has passed in
both the subjects. So, how many percentage of students
hasn't passed in both the subjects?
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Answer Posted / anan&
Aman posted
for example assume 100 students.
1.52 student pass in maths.
2.40 students pass in phy.
3.17 students pass in maths and phy
If you have 100 students 52% = 52 not 1.52 as you posted
40% = 40 not 2.40 as you posted
So.52-17=35 students pass in maths only
17% has nothing to do with math. The question said 52%
passed or 52 students and not 35 as you posted
40-17=23 students pass in phy only
The question said 40% passed physics or 40 students and not
23 as you posted.
35+23+17=75 students pass in at least one subject..
Question said 52 passed Math and 40 passed physics.
How can you say 75 passed at leased one subject?
Ans is 100-58=25% students hasn't passed in both the
subjects
You must be one of the group that failed math.
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