Permutations & Combinations
Grade 11
Question:
<p>Number of selections of 6 different letters can be made from the words <strong>NISHIT</strong> and <strong>RAHUL</strong> so that each selection consists of 3 letters from each word, is:</p>
<p style="display:inline">84</p>
<p style="display:inline">64</p>
<p style="display:inline">100</p>
<p style="display:inline">106</p>
Step-by-Step Solution
Key Concept: To select distinct items from two sets with overlapping elements, identify the shared elements and use case-based counting to ensure no element is repeated in the final selection.
<p>64</p>
Correct Answer: B