Reflection -
In a dass
there
50 students out of which
40 study Mathematics and
20 study physics.
Find the number of students who study both mathematics and physics
Answers
Explanation:
The number of students who study mathematics and physics is 10
Sets
In a class , 40 student like Maths, 50 students like Physics and 60 students like Chemistry. 30 students like both Maths and Physics, 20 students like both Physics and Chemistry and none of them like both Maths of Chemistry . Find the total number of students who like only Maths, only Physics and only Chemistry.
Updated On: 31-10-2020
159.7 K
like
108.6 K
dislike
1x
1.5x
2x
check-circle
Answer
Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.
check-circle
A
10
B
40
C
50
D
None
Answer
C
Solution
The number of students who study only Maths =
40−30=10.
The number of students who study only Physics =
50−50=0.
The number of students who study only Chemistry =
60−20=40.
∴ The required total number of students =10+40=50.