Permutations and Combinations questions
785 published questions with worked solutions.
- The number of ways that 8 beads of different colours can be strung to form a necklace is
- There are 5 boys and 3 girls seated in a row for a photograph. The number of ways in which a photograph can be taken if the girls...
- The teacher wants to arrange 5 students on the platform such that the boy B_1 occupies the second position and the girls G_1 and...
- The number of arrangements, of the letters of the word MANAMA in which two M's do not appear adjacent, is
- If a question paper consists of 11 questions divided into two sections I and II. Section I consist of 6 questions and section II...
- There are 6 periods in each working day of a school. The number of ways one can arrange 5 subjects such that each is allowed at...
- The number of cubic equations that can be formed with the coefficients 0, 3, 2, 4, 5, 6 when repetition of coefficients is...
- Five students are selected from n students such that the ratio of number of ways in which 2 particular students are selected to...
- A linguistic club consists of 6 girls and 4 boys. A team of 4 members is to be selected from this group including the selection...
- A bag contains 23 balls , of which 7 are identical. The number of ways of selecting 12 balls from the bag is
- The number of five-digit numbers formed using the digits 2, 3, 5, 7, 9 without repetition and which are greater than 24000 are
- The number of 4-letter words formed from the English alphabet such that there are exactly 2 vowels and 2 consonants and no vowel...
- The number of arrangements of the numbers between 10 and 1000 formed with the digits 0, 1, 2, 3, 4, 5, 6 without repetition is
- Eight chairs are numbered 1 to 8. Two women and three men wish to occupy one chair each. First the women choose chairs from...
- In a test, there are 5 questions of the 'true or false' type. No student has got all the answers correct and the sequence of...
- The number of arrangements of the letters in the word SOLAPUR, so that consonants and vowels are placed alternately is
- In a test, there are 7 questions of the type 'True or False'. No student got all the answers correct. If the sequence of answers...
- The number of ways, in which 6 boys and 5 girls can sit at a round table, if no two girls are to sit together, is
- 4 red balls and 5 green balls are selected from n balls. If the sum of both the selections is greater then ^ n+1 C_4 then the...
- The number of permutations of the letters of the word INSTITUTION are ….
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration