Question
A person has 12 friends out of which 7 are relatives. In how many ways can he invite 6 friends such that at least 4 of them are relatives?
More Permutation and combination Questions
- How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "MACHINE"?
- A group of 5 students is to be selected from 6 boys and 5 girls. Find the number of ways to form team such that the team consists of at most 2 boys.
- 8 students appear in an examination. In how many ways can the result be announced?
- From 7 persons A, B, C, D, E, F and G, how many different committees of 3 persons can be formed if A must be included but B must not be included?
- In how many ways can 17 members be seated in two lines with seating capacity of 9 and 8 members respectively? 1. 9! ×8! 2. 17 C9 ×17C8 3. 17 C9...
- How many different 4-letter codes can be formed using the letters of the word MARKET if no letter is repeated in a code?
- In how many different ways can the letter of the word ‘PRAISE’ be arranged?
- A group consists of 9 boys and 7 girls. In how many ways can 4 boys and 3 girls be selected from the group?
- How many different arrangements of the letters of the word 'STRIVE' can be made such that the vowels never occupy the even places?
- Seven balls out of which 4 are red and the rest are green are to be arranged in a row. Find the number of arrangements in which all four red balls are not ...
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)