Question

20 cards numbered 1,2,3,......20 are put in a box and mixed thoroughly.one card is drawn from the box.find the probability that the number on the card is a perfect square

Answer 1

Answer:

The probability of drawing a number on the card is a perfect square is $\frac{1}{5}$

Step-by-step explanation:

Given : 20 cards numbered 1,2,3,......20 are put in a box and mixed thoroughly.one card is drawn from the box.

To find : What is the probability that the number on the card is a perfect square?

Solution :

$\text{Probability}=\frac{\text{Favorable outcome}}{\text{Total number of outcome}}$

Total number of outcome = 20

Perfect square numbers between 1 to 20 is 1,4,9,16

Favorable outcome of (drawing a number that is a perfect square) = 4

$\text{Probability}=\frac{4}{20}$

$\text{Probability}=\frac{1}{5}$

Therefore, The probability of drawing a number on the card is a perfect square is $\frac{1}{5}$

Answer 2

Answer:The probability of drawing a number on the card is a perfect square is Step-by-step explanation:

Given : 20 cards numbered 1,2,3,......20 are put in a box and mixed thoroughly.one card is drawn from the box.

To find : What is the probability that the number on the card is a perfect square?

Solution :Total number of outcome = 20Perfect square numbers between 1 to 20 is 1,4,9,16

Favorable outcome of (drawing a number that is a perfect square) = 4

Therefore, The probability of drawing a number on the card is a perfect square is 1/5