top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

A prime number less than 70 is randomly picked, what is probability that one of its digit will be 6?

0 votes
406 views
A prime number less than 70 is randomly picked, what is probability that one of its digit will be 6?
posted Oct 17, 2018 by anonymous

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

2 Answers

0 votes

List of primes under 70
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67
2/19 primes have 6 in their digits
Therefore there is a [200/19]% chance of randomly picking a prime number under 70 that includes 6 as one of its digits.

answer Oct 17, 2018 by Tejas Naik
0 votes

First, we have to calculate the number of prime numbers between 0 and 70
1,3, 5, 7, 11, 13, 17, 19, 21, 23, 27, 31, 37, 41, 47, 51, 57, 61, 67 A total of 19 prime numbers
Only two numbers contain the digit 6
Then, the probability is 2 / 19

answer Oct 18, 2018 by anonymous
...