Difficulty: Easy
Correct Answer: 24
Explanation:
Introduction:
Age calculation questions are very common in aptitude tests and often test simple subtraction and understanding of completed years. Here we are asked to find the age in 2019 of a person who was born in 1995, with the usual assumption that we are only interested in completed years and not in the exact date within the year.
Given Data / Assumptions:
Year of birth = 1995. Year for which age is asked = 2019. We ignore the specific birth date and day, and assume the person has completed all years up to 2019.
Concept / Approach:
The simplest way to approximate age in years is to subtract the birth year from the given year. This gives the age the person will have during that year, assuming the birthday in that year has already occurred. As the question does not mention months or days, the standard exam convention is to use this subtraction directly.
Step-by-Step Solution:
Step 1: Subtract the birth year from the given year. Age in 2019 ≈ 2019 − 1995. Compute the difference: 2019 − 1995 = 24. So the person would be 24 years old in 2019 in terms of completed calendar years.
Verification / Alternative check:
We can think logically: from 1995 to 2005 is 10 years, from 2005 to 2015 is another 10 years, and from 2015 to 2019 is 4 years. Summing gives 10 + 10 + 4 = 24 years. This matches our direct subtraction and confirms the answer.
Why Other Options Are Wrong:
22 or 23: These correspond to subtracting incorrect spans (for example, if one mistakenly used 2017 or 2018 instead of 2019). 25 or 26: These would mean subtracting 1995 from 2020 or 2021, not 2019.
Common Pitfalls:
Students sometimes overthink the problem and worry about months and days even though the question clearly uses only years. Another mistake is miscalculating the subtraction, especially under exam pressure. Writing the numbers plainly and subtracting carefully avoids such errors.
Final Answer:
The person's age in 2019 would be 24 years.
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