JEE Mains · Maths · STD 11 - 6. permutation and combination
The number of integers, greater than \(7000\) that can be formed, using the digits \(3,5,6,7,8\) without repetition, is
- A \(120\)
- B \(168\)
- C \(220\)
- D \(48\)
Answer & Solution
Correct Answer
(B) \(168\)
Step-by-step Solution
Detailed explanation
Four digit numbers greater than \(7000\) \(=2 \times 4 \times 3 \times 2=48\) Five digit number \(=5 !=120\) Total number greater than \(7000\) \(=120+48=168\)
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