Solved UPSC CDS/OTA Question
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Q · Average Medium · 45s
The average age of 4 members of a family is 25 yr. If the head of the family is included in this group, then average age increases by 20%. Find out the age of the head)
TopicAverage
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Final Answer: Option B - 50 yr