In a class of 400 students, 10% participate in dance program, 8% participate in
English play, 4% in Hindi play, 20% in music program. How many of the
students do not take part in any activity?
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In a class of 400 students, 10% participate in dance program, 8% participate in
English play, 4% in Hindi play, 20% in music program. How many of the
students do not take part in any activity?
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Answer:
Let A and B represents the students play cricket and football respectively.
Let x be the percentage of students play neither cricket nor football.
Given:-
n(A∩B)=10
n(A)=50
n(B)=40
Now,
n(A)+n(B)+x−n(A∩B)=100
⇒50+40+x−10=100
⇒x=110−90=20
Hence 20% students play neither cricket not foot ball
Answer:
232
Step-by-step explanation:
10% of 400
= 10/100 × 400
= 40
8% of 400
= 8/100 × 400
= 32
4% of 400
= 4/100 × 400
= 16
20% of 400
= 20/100 × 400
= 80
40+32+16+80 = 168
400 - 168 = 232
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