Q63.The number of ways in which an examiner can assign 30 marks to 8 questions, giving not less than 2 marks to any question, is : (1) 30C7 (2) 21C8 (3) 21C7 (4) 30C8
What This Question Tests
This problem tests the ability to model a distribution problem with a minimum constraint using the stars and bars method for combinations with repetition.
Concepts Tested
Formulas Used
Number of solutions to x₁ + ... + xₖ = n (xᵢ ≥ 0) is C(n + k - 1, k - 1)
📚 NCERT Sections This Tests
5.28 — How Many Ions Are Produced From The Complex Co(Nh3)6Cl2 In Solution?
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5.28 How many ions are produced from the complex Co(NH3)6Cl2 in solution? (i) 6 (ii) 4 (iii) 3 (iv) 2 139 Coordination Compounds Reprint 2025-26
1.3 — Define The Following Terms:
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1.3 Define the following terms: (i) Mole fraction (ii) Molality (iii) Molarity (iv) Mass percentage.
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1.28 Calculate the mass percentage of aspirin (C9H8O4) in acetonitrile (CH3CN) when 6.5 g of C9H8O4 is dissolved in 450 g of CH3CN.
📋 Question Details
- Chapter
- Permutation & Combination
- Topic
- Combinations with repetition
- Year
- 2013
- Shift
- 22 Apr Online
- Q Number
- Q63
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 7: Permutations and Combinations
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