Question

Evaluate √36 + √(324/81) + √((9.5 × 0.0085 × 18.9)/(0.021 × 0.0017 × 1.9)) .

Asked in RRB NTPC (UG) CBT-I · 2026
Square and Square Root · Quantitative Aptitude
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Quantitative AptitudeNumber SystemSquare and Square RootRRB NTPC (UG) CBT-I2026
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For a number between two consecutive perfect squares, use the corresponding integers to estimate its square root quickly.

Correct AnswerCorrect option for this question
Option B — 158

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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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