CAT 2019 Slot 1 QA Q33 Functions & Graphs

Question 33 of the Quantitative Ability (QA) section, CAT 2019 Slot 1, with CAT's official answer.

Consider a function f(x+y) = f(x) f(y) where x , y are positive integers, and f(1) = 2. If f (a+1) + f (a+2) + ..... + f(a+n) = 16 (2n - 1) then a is equal to. [TITA]

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

Answer: 3 Functions & Graphs TITA

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