CAT 2021 Slot 1 QA Q13 Permutations & Probability

Question 13 of the Quantitative Ability (QA) section, CAT 2021 Slot 1, with CAT's official answer.

The number of groups of three or more distinct numbers that can be chosen from 1, 2, 3, 4, 5, 6, 7 and 8 so that the groups always include 3 and 5, while 7 and 8 are never included together is

TITA: type in the answer. There are no options and no negative marking.

Answer: 47 Permutations & Probability TITA

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