Q64.The number of 4 -letter words, with or without meaning, each consisting of 2 vowels and 2 consonants, which can be formed from the letters of the word UNIVERSE without repetition is _____.
What This Question Tests
The question requires identifying vowels and consonants, then applying combinations to select letters and permutations to arrange them to form words with specific criteria.
Concepts Tested
Formulas Used
nCr = n! / (r! * (n-r)!)
nPr = n! / (n-r)!
๐ NCERT Sections This Tests
12.5 โ A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 ยท Chapter 12
12.5 A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon.
1.3 โ Define The Following Terms:
Chemistry Class 11 ยท Chapter 1
1.3 Define the following terms: (i) Mole fraction (ii) Molality (iii) Molarity (iv) Mass percentage.
5.18 โ What Is Crystal Field Splitting Energy? How Does The Magnitude Of Do Decide
Chemistry Class 11 ยท Chapter 5
5.18 What is crystal field splitting energy? How does the magnitude of Do decide the actual configuration of d orbitals in a coordination entity?
๐ Question Details
- Chapter
- Permutation & Combination
- Topic
- Formation of words
- Year
- 2023
- Shift
- 06 Apr Shift 2
- Q Number
- Q64
- Type
- Numerical
- NCERT Ref
- Class 11 Mathematics Ch 7: Permutations and Combinations
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