Choosing/Selecting/Picking a/Single/One item, product, article, page from two or more items, products, articles, pages
Problem 1
A page from a book containing 100 pages is opened at random. Find the probability that a doublet is found on the page.
(Or)
A book has 100 pages. If a page is opened at random, find the probability for the page to have a two digit number with the same digitsSolution Ans :
| 9 |
| 100 |
Problem 2
A page is randomly selected from a book of 88 pages, then find the probability that the sum of the digits of the page is 10.
Solution Ans :
| 1 |
| 11 |
Problem 3
A box contains 400 bolts of which 20 are defective. Find the probability that a bolt chosen at random from the box is not defective.
Solution Ans :
| 19 |
| 20 |
Problem 4
A lot consists of 12 good products, 6 with minor defects and 2 with major defects. A product is chosen at random. The probability that it is defective is
Solution Ans :
| 2 |
| 5 |
Author : The Edifier