Question

out of 50 students, the number of students wearing uniform and colour dress are in ratio 4:1. Find the number of students wearing uniform

Answer 1

Answer:

no of students wearing uniform=40

Step-by-step explanation:

no of students wearing uniform

=total no of students×ratio of no. of students wearing uniform

no. of students wearing uniform=50×4÷5

=40

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Answer 2

Answer:

let n(s) = 50

P(A) = 4x

P(A') = x

P(A) + P(A') = 1

4x + x = 1

5x = 1

therefore, x = 1/5

no. of students wearing uniform = 4(1/5) x 50 = 40 students