Question

The sum of two numbers is 45 and their difference is 9. Find the smaller number.

Asked in RRB Group D · 2025
Quick Math · Quantitative Aptitude
Exam PYQ4 Options
Quantitative AptitudeNumber SystemQuick MathRRB Group D2025
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Quick Revision

Squaring a number ending in 5 can use the pattern n5² = n(n+1) followed by 25.

Correct AnswerCorrect option for this question
Option B — 18

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Understand common fraction-to-percentage conversions and useful fraction values. These shortcuts help simplify calculations in Percentage, Ratio, Profit & Loss and other Quantitative Aptitude topics.

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Questions Asked from Fraction Tricks in Previous Exams

See how often Fraction Tricks has appeared in previous-year questions across major government exams.

High Exam Frequency
15UPSC Questions Asked in These Years:2010, 2011, 2012, 2013, 2014, 2015, 2016, 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
6Railways Questions Asked in These Years:2016, 2018, 2021, 2022, 2025, 2026
13State PSC Questions Asked in These Years:2004, 2012, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Fraction Tricks has appeared in 45 previous-year exam questions, most frequently in UPSC, State PSC and SSC.
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