How to solve IPMAT 2019 - Quantitative Aptitude Question 16?

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 2019 - Quantitative Aptitude Question 16

This is a detailed step-by-step solution for IPMAT 2019 - Quantitative Aptitude Question 16. Understand the concept, common mistakes, and expert tips to solve similar questions in IIM IPMAT exam.

IPMAT 2019 - Quantitative Aptitude

The equation can be rewritten as

Now, since y is an integer, (x+1)/7 it is also an integer, which means x + 1 is a multiple of 7.
∴ Positive values of x => 6, 13, 20....97 = 14 values
Negative values of x => -1, -8, -15 ...-97 = 15 values
∴ Total = 14 + 15 = 29 values

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