Question

Cards marked with number 3, 4, 5, …, 50 are placed in a box and mixed thoroughly. A card is drawn at random from the box. Find the probability that the selected card bears a perfect square number.

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Answer 1

Answer:

Total Number of Cards= 50-2=48

The perfect square number between

3-50 are-4,9,16,25,36,49- 6 perfect

squareS.

Probability= Number of Perfect squares/

Total number of cards

=6/48

=1/8(Answer)

Answer 2

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Given :

~ Cards marked with number 3, 4, 5, …, 50 are placed in a box and mixed thoroughly

To find :

Probability that the selected card bears a perfect square number.

Solution :

✪ Total number of outcomes = 48

✪ In total there are six perfect square = 4,9,16,25,36 and 49

✪ So, favorable outcomes we get are = 6

✪ Probability of card drawn at random is a perfect square

$\huge\frac{Number\:of\:favourable\:outcomes}{Total\: number\:of\: outcomes}$

$=\huge \frac{6}{48}$

= $\huge \frac{1}{8}$