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UPSC 2001: A conveyer belt delivers baggage at the rate of 3 tons in 5 minutes, and a second conveyer belt delivers baggage at the rate of 1 ton in 2 minutes. How much time will it take to get 33 tons of baggage delivered using both the conveyer belts?
(a)25 minutes and 30 seconds
(b)30 minutes
(c)35 minutes
(d)40 minutes and 45 seconds
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Not attemptedCorrect Answer: (b) 30 minutes
Belt 1 handles 3 tons in 5 min → 0.6 ton/min. Belt 2 handles 1 ton in 2 min → 0.5 ton/min. Together they deliver 0.6 + 0.5 = 1.1 tons/min. To move 33 tons: 33 ÷ 1.1 = 30 minutes, which matches option (b).
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Frequently Asked Questions
What is the correct answer to this UPSC 2001 Science & Technology question?▼
The correct answer is option (b): 30 minutes. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Quantitative Aptitude question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2001, GS Paper 1, as Question 141. It falls under Science & Technology > Quantitative Aptitude.
What is the difficulty level of this UPSC question?▼
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
How many UPSC Prelims questions have been asked from Quantitative Aptitude?▼
UPSC has asked 178 questions from Quantitative Aptitude (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.