Question

A box contains 25 cards numbered from 1 to 25. A card is drawn from the box at
random. Find the probability of getting the card with (a) a perfect square (b) a
number divisible by 3​

Answer 1

Answer:

4/25

Step-by-step explanation:

The Perfect Squares are:4,9,16,25

Answer 2

✯✯ QUESTION ✯✯

A box contains 25 cards numbered from 1 to 25. A card is drawn from the box at

random. Find the probability of getting the card with (a) a perfect square (b) a

number divisible by 3..

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✰✰ ANSWER ✰✰

$⇢\textbf{Total\:Outcomes=25}$

(a)A perfect Square : -

$⇢\textbf{Favourable\:Outcomes=5}$

$⇢Probability=\dfrac{No.\:of\:Favourable\:Outcomes}{Total\:no.\:of\:Outcomes}$

$⇢Probability=\cancel\dfrac{5}{25}$

☛$Probability\large{\boxed{\bold{\bold{\red{\sf{\dfrac{1}{5}}}}}}}$

(b)Number divisible by 3

$⇢\textbf{Favourable\:outcomes=8}$

$⇢Probability=\dfrac{No.\:of\:Favourable\:Outcomes}{Total\:no.\:of\:Outcomes}$

☛$Probability=\large{\boxed{\bold{\bold{\blue{\sf{\dfrac{8}{25}}}}}}}$