SOLUTION: From 20 tickets marked with the first 20 numerals, one is drawn at random. What is the chance that it will be a multiple of 3 or of 7?
Algebra.Com
Question 468077: From 20 tickets marked with the first 20 numerals, one is drawn at random. What is the chance that it will be a multiple of 3 or of 7?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
There are 6 multiples of three and 2 multiples of seven.
6+2=8
8/20=2/5 the chance that it will be a multiple of 3 or of 7.
.
Ed
RELATED QUESTIONS
Please help me to solve this,
from 20 tickets marked with the first 20 numerals, one... (answered by mathmate)
I need help with these three problems.
Problem #1
Find probablity
when a single card (answered by tanimachatterjee)
a number from 20 to 29 is drawn at random. p(23) what is the probability
(answered by richard1234)
A box of tickets averages out to be 75, and the SD is 10. 100 draws are made at random... (answered by Theo)
a bag has 9 tickets marked with the number 1,2,3,4,5,6,7,8,9.two tickets are drawn at... (answered by stanbon)
Two employees will be chosen at random from a group of five to go to a conference. What... (answered by ikleyn)
Thirty raffle tickets are numbered from 1 to 30. Two tickets are drawn at random without... (answered by stanbon)
Raffle tickets numbered 1 through 30 are placed in a box. Tickets for a second raffle... (answered by Edwin McCravy)
Raffle tickets numbered 1 through 30 are placed in a box. Tickets for a second raffle... (answered by Fombitz)