JEE Mains · Maths · STD 11 - 6. permutation and combination
The number of \(3-\)digit numbers, that are divisible by either \(2\) or \(3\) but not divisible by \(7\) is \(.........\).
- A \(513\)
- B \(512\)
- C \(514\)
- D \(511\)
Answer & Solution
Correct Answer
(C) \(514\)
Step-by-step Solution
Detailed explanation
Divisible by \(2 \rightarrow 450\) Divisible by \(3 \rightarrow 300\) Divisible by \(7 \rightarrow 128\) Divisible by \(2\) and \(7 \rightarrow 64\) Divisible by \(3\) and \(7 \rightarrow 43\) Divisible by \(2\) and \(3 \rightarrow 150\) Divisible by \(2,3\) and…
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