Prepare flash cards numbered from 1 to 50 and place them in a bag or box. A card is drawn in random from the box.
What is the probability of getting (i) An odd number (ii) Prime number (iii)A number divisible by 9
(iv) Number not divisible by 5
plz answer
Answers
Answer:
Step-by-The least number that is divisible by all the numbers from 1 to 5 (both inclusive)is?step explanation:
Answer:
Step-by-step explanation:
(i)probability of getting an odd number
ans) number of outcomes/2
i.e. 50/2 = 25 (25/50)
(ii)probability of getitng a prime number
ans) prime numbers from 1 to 50 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, and 47
probability of getting a prime number is: 15 (15/50)
(iii)probability of a number divisible by 9
ans) note: list the numbers of '9' table i.e. 9, 18, 27, 36, 45, 54, 63, 72, 81, 90
count in range less than or equal to 50
probability of a number divisible by 9 from 1 to 50 is: 5 (5/50)
(iv)probability of a number not divisible by 5
ans) note: list the numbers of '5' table i.e. 5, 10, 15, 20, 25, 30, 35, 40, 45, 50
exclude the numbers of '5' table from range 1 to 50
numbers remained are: 1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13, 14, 16, 17, 18, 21, 22, 23, 24, 26, 27,
28, 29, 31, 32, 33, 34, 36, 37, 38, 39, 41, 42, 43, 44, 46, 47, 48, 49
total numbers available are 39
probability of a number not divisible by 5 is: 39 (39/50)