Five years ago, the average age of A,B,C and D was 45 years.... — Quantitative Techniques and Data Interpretation 2020

Question 318 Quantitative Techniques and Data Interpretation 2020 Medium MCQ +4.00 marks · -1.00 negative

Five years ago, the average age of A,B,C and D was 45 years. By including X in the present lot their present average changes to 49 years. What is the present age of X?

A. 40 years B. 45 years C. 49 years D. 48 years

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