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Permutations
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How many numbers lying between 10 and 100 can be formed with the help of digits 1,3,5,7,9?
June 25th, 2022
permutations
How many different ways can a group of students be hired to work a survey?
September 12th, 2020
permutations
combinatorics
statistics
A committee of $6$ is chosen from $8$ men and $5$ women so as to contain at least $2$ men and $3$ women.
June 1st, 2022
combinations
permutations
How to distinguish repetition is allowed and not allowed for combination and permutation?
June 6th, 2022
discrete-mathematics
combinations
permutations
combinatorics
How to calculate the number of non decreasing functions between two finite sets?
June 1st, 2022
combinatorics
permutations
functions
A team won 80% of the games it played 5 more games of which it won 3 and lost 2. Its loss percentage changed to 25% how many games it play overall?
June 6th, 2022
percentages
combinations
permutations
combinatorics
probability
Permutation of n objects with restriction of adjacent pairs
June 14th, 2022
permutations
inclusion-exclusion
How many 4 digit numbers can be made with exactly 2 different digits
December 4th, 2020
permutations
combinatorics
Number of ways the letters of "Arrange" can be arranged so that the two r's are not consecutive
June 1st, 2022
permutations
Combination question on forming a committee
June 8th, 2022
permutations
combinations
education
How many natural numbers less than 1000 have the sum of their digits equal to 5? A.56 B.54 C.26 D.21 E.18
June 9th, 2022
permutations
number-theory
How often does 7 occur from number 1 to 1000?
June 9th, 2022
combinations
permutations
permutation formula $P(n, k) = P(n-1, k) + k P(n-1, k-1)$
June 1st, 2022
combinatorics
permutations
discrete-mathematics
How many 4 digit numbers can be formed by digits 3, 1, 3, 1?
December 15th, 2020
combinatorics
permutations
combinations
Statistics Probability breathalyser test questions
June 8th, 2022
probability
statistics
permutations
combinations
For how many natural numbers $a$ is the expression $\sqrt{\frac{a+64}{a-64}}$ also a natural number?
June 9th, 2022
permutations
combinations
square-numbers
In how many ways can you choose three distinct numbers ....
June 10th, 2022
combinatorics
permutations
combinations
How many 4 digit numbers can be formed?
August 13th, 2020
permutations
15 indistinguishable fishes be placed into 5 different ponds
June 1st, 2022
permutations
How many ways to divide 11 people into 3 groups of 3 and one group of 2?
June 1st, 2022
permutations
Forming 4-digit odd numbers under certain rules
June 7th, 2022
permutations
combinations
$S_4$ is not isomorphic to $D_{12}$
June 12th, 2022
abstract-algebra
permutations
Figure Out Possible Combinations
June 9th, 2022
permutations
Dealing a 5 card hand with exactly 1 pair
June 8th, 2022
discrete-mathematics
combinatorics
permutations
combinations
Probability of the sum of two drawn cards being less than 11?
June 6th, 2022
statistics
permutations
conditional-probability
combinatorics
probability
Probability of A Specific Type of Experiment Occuring
June 9th, 2022
permutations
combinatorics
probability
statistics
Calculating the expected profit with Probability A level maths CIE
June 8th, 2022
probability
statistics
permutations
probability-distributions
combinations
Can someone please explain the reasoning for this permutation problem?
March 23rd, 2020
discrete-mathematics
permutations
Bridge hand Combination/Permutation
June 1st, 2022
permutations
combinatorics
probability
How many different ice cream cones with 31 different flavors and 2 kinds of cones?
June 9th, 2022
permutations
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