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Class 11 Maths Practice Test - Combinations
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Avg score: 55% • Most missed: “Is nCr = nCn-r true?”

Related Test: Class 11 Maths Practice Test - Permutations and Combinations

Class 11 Maths Practice Test - Combinations
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12 Questions

1. Determine n if 2nC3: nC3 = 9:1.
2. In a family, 5 males and 3 females are there. In how many ways we can select a group of 2 males and 2 females from the family?
3. nCr = ________________
4. If nC2 = nC3 then find n.
5. nC0 = ________________
6. Order matters in combination.
7. If 14Cr = 14 and 15Cr = 15. Find the value of 14Cr-1.
8. nCn = ________________
9. Out of a group of 5 persons, find the number of ways of selecting 3 persons.
10. Is nCr = nCn-r true?
11. nPr = nCr * ______________
12. If 6C2 = 6CX then find possible values of x.

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