Life of Pi

Algebra Level pending

A class of students was asked who had seen the movie The Life of Pi and who had seen the movie Finding Nemo. Twenty students had seen at least one of these movies. 20% of the students had seen neither of these movies.

How many students were in the class?


The answer is 25.

Harsh Shah by Harsh Shah , 20, India

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2 solutions

Parveen Soni
Nov 17, 2014

Let total No. of Students=x then as per given we have
Seen atleast one movie+ seen none movie=total
20+x(20%)=x which result x=25

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Viraj Tamakuwala
Nov 19, 2014

20% Students see neither of the movies

therefore either of the movies is seen by 80% students which was 20

let no. of students be x

80%of x=20

x=(20*100)/80

x=25std.

Therefore, there were 25 students in the class.

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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