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UPSC 2001: The following table shows the percentage change in the consumption of electricity by five towns P, Q, R, S, T from 1986 to 1988: Town Per cent change from 1986 to 1987 From 1987 to 1988 P +8 −18 Q +15 −11 R +6 +9 S −7 −5 T +13 −6 If town T consumed 500,000 units in 1986, how much did it consume in 1988?
(a)371,000 units
(b)531,100 units
(c)551,100 units
(d)571,100 units
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Not attemptedCorrect Answer: (b) 531,100 units
Town T: 1986 consumption = 500 000 units. 1987 change = +13 % ⇒ 500 000 × 1.13 = 565 000. 1988 change = –6 % ⇒ 565 000 × 0.94 = 531 100 units. This matches option (b); other options arise from applying the percentages in the wrong order or using simple instead of successive change. ([sarthaks.com](https://www.sarthaks.com/71737/the-following-table-shows-the-percentage-change-the-consumption-electricity-five-towns?utm_source=openai))
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What is the correct answer to this UPSC 2001 Indian Economy question?▼
The correct answer is option (b): 531,100 units. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this National Income & Economic Growth question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2001, GS Paper 1, as Question 114. It falls under Indian Economy > National Income & Economic Growth.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
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UPSC has asked 37 questions from National Income & Economic Growth (under Indian Economy) across multiple years. Visit the topic page to see the full list and year-wise trends.