In a school, only 2 out of 5 students can participate in a quiz. What is the chance that a student picked at random makes it to the competition?
(a) 20%
(b) 40%
(c) 50%
(d) 30%

Solution:

In a school, only 2 out of 5 students can participate in a quiz.

We have to determine the chance that a student picked at random makes it to the competition.

Total number of possible outcomes = 5

Total number of favourable outcomes = 2

The probability of an event = Number of outcomes favourable to the event/Total number of outcomes in the experiment

Probability = 2/5

Percentage = 2/5 × 100

= 2 × 20

= 40%

Therefore, the required percentage is 40%

✦ Try This: In a school, only 3 out of 10 students can participate in a competition. What is the chance that a student picked at random makes it to the competition

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 3

NCERT Exemplar Class 7 Maths Chapter 3 Problem 10

In a school, only 2 out of 5 students can participate in a quiz. What is the chance that a student picked at random makes it to the competition (a) 20% (b) 40% (c) 50% (d) 30%

Summary:

In a school, only 2 out of 5 students can participate in a quiz. The chance that a student picked at random makes it to the competition is 40%

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