Question

In a class, 60% of children like Mathematics, 45% like Science and 25% like both
Mathematics and Science. What is the percentage of children who like at least one
subject?​

Answer 1

Answer:

80%

let the class have 100 students

60 like maths

45 like science 25 like both.

60 + 45-25 +x = 100 where x is the number of students who don't like anything.

80+x =100 x=20

fraction who don't like anything is 20/100 percentage is 20% but they are asking percentage who like at least one subject so

100%-20%=80%