0

Guest

Courses New

A bag contains 20 tickets numbered from 1 to 20.Two tickets are drawn at random.The probability that both the numbers appearing on the tickets drawn will be prime:

A bag contains 20 tickets numbered from 1 to 20.Two tickets are drawn at random.The probability that both the numbers appearing on the tickets drawn will be prime:

Grade:12th Pass

1 Answers

ASh
62 Points
6 years ago
Prime numbers between 1-20 = { 1, 3, 5, 7, 11, 13, 17, 19} 
Total number of Prime numbers = 8 
Total number of outlets = 20 
Therefore, 
P ( Prime number) = 8/20 
= 2/5 

Hope it helps you :)

Think You Can Provide A Better Answer ?

Other Related Questions on Magical Mathematics[Interesting Approach]

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More