How many total combinations can be formed of 8 different counters marked as 1, 2, 3, 4, 5, 6, 7 & 8, taking 4 counters at a time and there being…

CA Foundation · Quantitative Aptitude · PYQS · September 2024
How many total combinations can be formed of 8 different counters marked as 1, 2, 3, 4, 5, 6, 7 & 8, taking 4 counters at a time and there being at least one odd and one even numbered counter in each combination?
(A) A. 66
(B) B. 68
(C) C. 64
(D) D. 62

Suggested Answer and Working Notes:

Correct Answer: Option (B)

B. 68

Topics: Part-A: Business Mathematics

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