Solved UPSC CDS/OTA Question
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Q · Average Medium · 45s
A batsman has a certain average in his 11 innings. He scored 90 runs in 12th inning, due to this his average decreased by 5 runs. Then find his current average?
TopicAverage
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
Let the average of the batsman after 11 innings be x.
So, 11x + 90 = (x – 5) x 12
X = 150
Current = (x-5) = 145
Final Answer: Option A - 145