Question
If x = √225 + √484, what is the value of x2 - [(√225)2 + (32)2]?
Asked in RRB NTPC (UG) CBT-I · 2026
Square and Square Root · Quantitative Aptitude
Exam PYQ4 Options
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Use the identity √(a × b) = √a × √b when the numbers can be broken into known perfect squares.
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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.
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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