Question

In a class, 40% of the students participated in Mathematics - quiz, 30% in Science -quiz and 10% in both the quiz programmes. If a students is selected at random from the class,find the probability that the students participated in Mathematics or science or both quizprogramme​

Answer 1

Answer

0.8

You can see the attached document for step by step explanation

Answer 2

Step-by-step explanation:

just let the no. of total students be x and we can find out that wether the person chosen had participated in which quiz.