InterviewSolution
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InterviewSolution
| 1. |
The number of ways in which 20 mangoes may be distributed among 5 children, so that each child gets at least one mango is (1) 20C4 (2) 19C4 (3) 24C3 (4) 19C5 |
| Answer» <p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif"><strong>Correct option (1) <sup><span style="font-size:10.8333px">19</span></sup>C<sub>4</sub></strong></span></span></p><p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif"><strong>Explanation: </strong></span></span></p><p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif">The number of ways = The number of positive integral solutions of x + y + z + t + u = 20 = <sup>19</sup>C<sub>4</sub> (by partition method).</span></span></p><p></p> | |