AP EAMCET · Maths · Permutation Combination
The number of distinct positive integers can be formed using \(0,1,2,3\) where each integer used at most once is equal to
- A \(84\)
- B \(64\)
- C \(48\)
- D \(36\)
Answer & Solution
Correct Answer
(C) \(48\)
Step-by-step Solution
Detailed explanation
Given integers, 0, 1, 2, 3 Case I The number of ways to form four digit integers \(=3 \times 3 \times 2 \times 1=18\) (first place can be filled by one of the three choices \(1,2,3)\) Case II The number of 3-digit integers \(=3 \times 3 \times 2=18\) Case III The number of…
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