Probability of getting multiple of 5 if a two digit number is written down at random is.....?
Probability of getting multiple of 5 if a two digit number is written down at random is.....?
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Total Two Digits Numbers (10 to 99) = 90
Multiples of 5 between 10 to 99 = 18 (10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95)
Hence Probability of Getting Multiple of 5 between two digit number =
Given : two digit number is written down at random is
To Find : The probability of getting a multiple of 5
Solution:
two digit numbers are from 10 to 99
There are 90 , 2 digit numbers
Multiple of 5 if ends with 0 or 5
10 , 20 , 30 , 40 , 50 , 60 , 70 , 80 , 90
15 , 25 , 35 , 45 , 55 , 65 , 75 , 85 , 95
18 numbers are Divisible by 5
Hence probability = 18/90 = 1/5
The probability of getting a multiple of 5 if two digit number is written down at random is 1/5
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