Question
Find the smallest number that must be added to 1780 to make it a perfect square.
Asked in HSSC CET Group C · 2023
Square and Square Root · Quantitative Aptitude
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The square of an even integer is always even.
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Learn how to find the square root of perfect squares quickly by identifying the last digit and using the first part of the number. These shortcuts are useful for finding square roots without lengthy calculations.
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Questions Asked from Square Root Tricks in Previous Exams
See how often Square Root Tricks has appeared in previous-year questions across major government exams.
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 Root Tricks has appeared in 42 previous-year exam questions, most frequently in UPSC, SSC and State PSC.
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