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Quantitative Reasoning – Practice – Permutation and Combination – Find the sum of the rightmost digit!!!

PSA_LEVEL-UP_QNR26. Let S be the set of five-digit numbers formed by the digits 1,2,3,4 and 5, using each digit exactly once such that exactly two odd positions are occupied by odd digits.
What is the sum of the digits in the rightmost position of the numbers in S?

1. 228
2. 216
3. 294
4. 192

Ans: Please attempt the question and then refer to the below video for complete solution to this question:

 

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