UPSSSC PET 2022 (15 Oct Shift 1)
Directions
The average production of 2015 and 2016 was exactly equal to the average production of which of the following pair of years ?
Answer (Detailed Solution Below)View answer ▾Hide ▴
Answer: Option D — 2012 and 2017
Detailed Solution
Average production of 2015 and 2016 = (80 + 65) ÷ 2 = 72.5 lakh.
Average of 2012 and 2017 = (55 + 90) ÷ 2 = 72.5 lakh, which is equal; the other pairs give 70, 62.5 and 77.5 lakh.
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Data Interpretation — UPSSSC PET Preparation
This question tests your understanding of Data Interpretation, a key topic in the UPSSSC PET Quantitative Aptitude section. The detailed solution above uses a step-by-step approach to show the reasoning, and where available, a shortcut that helps you solve similar questions in under 90 seconds during the actual exam.
Data interpretation (DI) questions present data in a table, bar graph, line graph, pie chart or a combination, and ask a set of questions based on it. The questions test calculation skills applied to real-looking data: percentages and percentage change, ratios, averages, growth rates, and comparisons between years or categories. Speed comes from two habits. First, read the chart carefully before answering, including its title, units and scale. Second, approximate wherever the options are far enough apart. Strong percentage and fraction skills (knowing that 1/8 = 12.5% or 1/6 = 16.67%) make most DI calculations quick. For pie charts, remember that a full circle is 360 degrees and each 1% equals 3.6 degrees. In the exam, attempt the DI sets with the cleanest data first. Practise the data interpretation sets below. Each question has a step-by-step solution with approximation shortcuts.