| 81730 | A bag contains 4 red and 3 green balls | Medium | |
| 81739 | How many possible ways are there to select 2 stocks at random… | Medium | |
| 81804 | In a contest, a bowl contains 12 keys, only one of which… | Medium | |
| 81840 | The probability that event A occurs is 0.4, and the probability that… | Medium | |
| 81954 | Two dice are rolled | Medium | |
| 81981 | A dice has one of the first 8 prime number on each… | Medium | |
| 82064 | If 4 people are selected from a group of 5 married couples… | Medium | |
| 82132 | A box contains 22 electric bulbs, out of which 4 are defective | Medium | |
| 82157 | A certain bag contains 100 balls — 50 white, 25 green, 10… | Medium | |
| 82181 | If there is an equal probability of a child being born a… | Medium | |
| 82289 | In a survey of 340 employees, 104 of them are uninsured, 54… | Medium | |
| 82377 | A coin has two sides | Medium | |
| 82382 | A basket contains 6 apples, of which 1 is spoiled and the… | Medium | |
| 82385 | {-10, -6, -5, -4, -2.5, -1, 0, 2.5, 4, 6, 7, 10}… | Medium | |
| 82416 | A basket has 6 apples and 4 oranges | Medium | |
| 82456 | S = { 1,5,3,7} T = { 4,5,6,7 } what is the… | Medium | |
| 82497 | Xavier, Yvonne, and Zelda each try independently to solve a problem | Medium | |
| 82551 | On a baseball team, 4 players including Alice want to play 1st… | Medium | |
| 82586 | A box contains 50 balls, numbered from 1 to 50 | Medium | |
| 82665 | A coin is weighted so that the probability of heads on any… | Medium | |
| 82721 | A string of 25 light bulbs is wired in such a way… | Medium | |
| 82839 | In a apartment, 70% of the people speak English, 10% speak Hindi… | Medium | |
| 82906 | If two dice are thrown simultaneously, then find the probability that the… | Medium | |
| 82926 | A dice has one of the first 6 prime number on each… | Medium | |
| 82952 | The probability of Sam passing the exam is 1/3 | Medium | |
| 82968 | Out of first 20 natural numbers , one number is selected at… | Medium | |
| 83029 | On Saturday morning, Malachi will begin a camping vacation and he will… | Medium | |
| 83112 | The set X = {7,8,9,10} | Medium | |
| 83175 | A 12 meter long wire is cut into two pieces | Medium | |
| 83180 | There are 8 girls and 8 boys | Medium | |
| 83182 | Out of 7 persons working on a project, 4 are graduates | Medium | |
| 83218 | In a jar there are balls in different colors: blue, red, green… | Medium | |
| 83263 | A basket contains 5 blue, 5 red and 5 yellow marbles | Medium | |
| 83364 | A bag contains 6 red, 2 yellow and 4 green balls | Medium | |
| 83454 | WINK, Inc | Medium | |
| 83477 | A painter intends to mixed two jars of paint to create a… | Medium | |
| 83561 | In a lottery, there are 12 prizes and 30 blanks | Medium | |
| 83720 | A jar contains only red, yellow, and orange marbles | Medium | |
| 83761 | If 4 people are selected from a group of 8 married couples… | Medium | |
| 83809 | An urn contains g green marbles and b blue marbles | Medium | |
| 83886 | In a deck of cards there are 52 cards numbered from 1… | Medium | |
| 83916 | If X is to be chosen at random from the integers between… | Medium | |
| 83937 | In the xy-plane, a triangle has vertices (0,0), (4,0) and (4,6) | Medium | |
| 83955 | On Saturday morning, Malachi will begin a camping vacation and he will… | Medium | |
| 83992 | Mandrake has to choose from 4 from 14 people | Medium | |
| 83996 | A box contains 3 yellow balls and 7 black balls | Medium | |
| 84025 | In a apartment, 30% of the people speak English, 20% speak Hindi… | Medium | |
| 84082 | Seven cards numbered from 1 to 7 are placed in an empty… | Medium | |
| 84091 | A certain junior class has 1,200 students and a certain senior class… | Medium | |
| 84117 | A committee is composed of w women and m men | Medium | |