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Average · UPSC CDS/OTA · Question 42 of 48

Average : Three years ago, the average age of a family of 5 members was 17 yr. Even after the birth of a child, the average is the same today. Find out the age of child.

Step-by-step solution. Average for UPSC CDS/OTA.

Topic
Average
Subject
Mathematics
Difficulty
Medium
Solve Time
45-60 sec

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Q · Average Medium · 45s

Three years ago, the average age of a family of 5 members was 17 yr. Even after the birth of a child, the average is the same today. Find out the age of child.

TopicAverage
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min

Step-by-Step Solution

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Every step explained - no skipped algebra.

Solution illustration 1Solution illustration 2
Final Answer: Option D - 2 yr
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Three years ago, the average age of a family of 5… - Average (Mathematics) Solved Question