Let be the set of seven-digit numbers with the sum of their digits equal to . If the numbers in are formed by using the digits , , and only, then the number of elements in the set is:
- A
- B
- C
- D
MCQMediumJEE Main 2025 · 29 January, Shift 1Applications of P&C
Mathematics Question from JEE Main 2025 · 29 January, Shift 1
Answer & step-by-step solution
Sign in to reveal the correct answer, the full step-by-step solution, and the common mistakes for this question.
Practice more Applications of P&C questions
Get unlimited AI-adaptive practice, mastery tracking, and an AI tutor that explains every step - free to start.
Related questions
- The number of strictly increasing functions f from the set {1, 2, 3, 4, 5, 6} to the set {1, 2, 3, …, 9} such…Medium · JEE 2026
- Let S = {(m, n): m, n ∈ {1, 2, 3, …, 50}}. If the number of elements (m, n) in S such that 6^m+9ⁿ is a…Medium · JEE 2026
- The largest n ∈ ℕ, for which 7ⁿ divides 101!, is:Easy · JEE 2026
- If ( 1/¹⁵C₀ + 1/¹⁵C₁) ( 1/¹⁵C₁ + 1/¹⁵C₂) … ( 1/¹⁵C₁₂ + 1/¹⁵C₁₃) = α¹³/(¹⁴C₀ ¹⁴C₁ … ¹⁴C₁₂), then 30α is equal…Medium · JEE 2026
- Let ABC be a triangle. Consider four points p₁, p₂, p₃, p₄ on the side AB, five points p₅, p₆, p₇, p₈, p₉ on…Medium · JEE 2026
- The number of 4-letter words, with or without meaning, which can be formed using the letters PQRPQRSTUVP, is:Medium · JEE 2026