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If the price of a television set is increased by 25%, then by what percentage should the new price be reduced to bring the price back to the original
When the frequency distribution is normal
The average of X1, X2 and X3 is 14. Twice the sum of X2 and X3 is 30. What is the value of X1?
The correct answer is option (c): 840°. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
This question was asked in UPSC CSE Prelims 1996, GS Paper 1, as Question 134. It falls under Science & Technology > Quantitative Aptitude.
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
UPSC has asked 164 questions from Quantitative Aptitude (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.