Question

A data analyst is studying a series of zoomed-in satellite resolutions. The base square root reference she uses is: √18225 = 135 She now wants to quickly compute the total of square roots for four scaled-down values (by factors of 10): (√182.25 + √1.8225 + √0.018225 + √0.00018225) What is the value of this sum?

Asked in Delhi Police Head Constable (Ministerial), 2025 · 2025
Square and Square Root · Quantitative Aptitude
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Quantitative AptitudeNumber SystemSquare and Square RootDelhi Police Head Constable (Ministerial), 20252025
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In option based questions, check the unit digit and nearest perfect squares first instead of calculating the complete square root.

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Option B — 15

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Questions Asked from Square and Square Root in Previous Exams

See how often Square and Square Root has appeared in previous-year questions across major government exams.

High Exam Frequency
14UPSC Questions Asked in These Years:2010, 2011, 2013, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2026
11SSC Questions Asked in These Years:2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
7Railways Questions Asked in These Years:2018, 2020, 2021, 2022, 2024, 2025, 2026
10State PSC Questions Asked in These Years:2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Square and Square Root has appeared in 42 previous-year exam questions, most frequently in UPSC, SSC and State PSC.
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