How to solve CAT 2019 Slot 2 - Quant Question 33?

This question can be solved by applying the core concept explained in the solution above, followed by step-by-step calculation and elimination of options.

Which concept is tested in this question?

This question tests fundamental concepts commonly asked in CAT exams.

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CAT 2019 - Slot 2 Quant Question 33

This is a detailed step-by-step solution for CAT 2019 - Slot 2 Quant Question 33. Understand the concept, common mistakes, and expert tips to solve similar questions in CAT exam.

CAT 2019 Slot 2 - Quant

First common term is 19,
& difference will be LCM (4, 5) = 20
Last term will be less then 415
415 = 19 + (n – 1) 20
n = 20.8
Means, n = 20 (will be our ans.)

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