How to solve IPMAT 2021 - Quantitative Aptitude Question 4?

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 IIM IPMAT exams.

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IPMAT 2021 - Quantitative Aptitude Question 4

This is a detailed step-by-step solution for IPMAT 2021 - Quantitative Aptitude Question 4. Understand the concept, common mistakes, and expert tips to solve similar questions in IIM IPMAT exam.

IPMAT 2021 - Quantitative Aptitude

As n lines are perpendicular to 5 parallel lines so selecting any 2 lines from n & any 2 lines from 5 will result in a rectangle.
Selecting 2 lines from n lines = ⁿC₂

(n – 9) (n + 8) = 0
n = 9, − 8
Lines can’t be negative in number so discard n= - 8
So value of n = 9

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