How to solve CMAT 2020 - Quantitative Aptitude Question 18?

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 CMAT exams.

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CMAT 2020 - Quantitative Aptitude Question 18

This is a detailed step-by-step solution for CMAT 2020 - Quantitative Aptitude Question 18. Understand the concept, common mistakes, and expert tips to solve similar questions in CMAT exam.

Quantitative Aptitude

Sum of ages of A, B, C and D five years ago = 45 × 4 = 180
Sum of their present ages = 180 + (5 × 4) = 200
Sum of present ages of all five (including X) = 49 × 5 = 245
=> Present age of X = 245 – 200 = 45 years

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