CAT 2020 Slot 2 QA Q4 Number Systems

Question 4 of the Quantitative Ability (QA) section, CAT 2020 Slot 2, with CAT's official answer.

The number of pairs of integers(x,y) satisfying x ≥ y ≥ -20 and 2x + 5y = 99 is

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

Answer: 17 Number Systems TITA

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