Question

cards marked with numbers 1,2,3,..........25 are placed in a box and mixed thoroughly and one card is drawn at random from the box. what is the probability that the number on the card is , a prime number, a multiple of 3 or 5 , an odd number neither divisible by 5 nor by 10,perfect square , a two digit number

Answer 1

Answer:

probability of getting a prime number =9/25.

probability of getting a multiple of 3 or 5=12/25.

probability of getting an odd number that is neither divisible by 5 nor by 10=10/25=2/5.

probability of getting a two digit number=16/25.

Hope it helps.

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Step-by-step explanation:

Answer 2

Probability that the number on the card is , a prime number is 9/25, a multiple of 3 or 5 is 12/25, an odd number neither divisible by 5 nor by 10 is 2/5, perfect square is 1/5, a two digit number is 16/25.

Given:

Cards marked with numbers 1,2,3,..........25 are placed in a box and mixed thoroughly and one card is drawn at random from the box.

To find,

what is the probability that the number on the card is , a prime number, a multiple of 3 or 5 , an odd number neither divisible by 5 nor by 10,perfect square , a two digit number

Solution,

P(getting a prime number) = 9/25.

P(getting a multiple of 3 or 5) = 12/25.

P(getting an odd number that is neither divisible by 5 nor by 10) = 10/25       =2/5.

P(getting a perfect square) = 5/25 = 1/5

P(getting a two digit number) = 16/25

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