Question

1. A box bears 30 cards .One card is drawn at random from the box.Find the probability that

it bears a) A two digit number b) a perfect square c) a number divisible by 5 please show the photo of it plz plz
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Answer 1

Answer:

1.Number of two-digit numbers in the range 1−30 is 21.

Hence, probability that the drawn card is a two digit number is:

P1 = 21/30

=0.7

2. Number of perfect square numbers in the range 1−30 is 5

Hence, probability that the drawn card is a perfect square number is:

P1 =30/5

=0.167

3. Number divisible by 5 number in range 1 -30 is 6

Hence, probability that the drawn card is divisible by 5 is:

P1 = 6/30

= 5

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Answer 2

Answer:

a) 2/3

b)13/30

c)1/6

Step-by-step explanation:

No. of cards = 30cards

If one card is drawn from it randomly than the cards will be (30 - 1 ) = 29 cards

Outcomes of two digits no. = 20

a) Probability = 20/30

= 2/3

b) A perfect square

Outcomes= ( 4,6,8,10,12,14,16,18,20,22,24,26,28)

Probability=13/30

c)No. divisible by 5

Outcomes= ( 5,10,15,20,25)

Probability= 5/30

= 1/6