Logarithms
27 NDA Mathematics previous year questions (PYQs) from 14 papers, 2017 to 2026, with answers and worked solutions.
About this chapter
- Difficulty: 6 easy · 16 moderate · 5 hard.
- Most-asked subtopics: Logarithm Identities, Change of Base, and Sums (16), Solving Logarithmic Equations and Applications (11).
- Updated 17 May 2026.
- NDA · Sep 2017 · Q25Moderate
#1Logarithm Identities, Change of Base, and Sums
- NDA · Apr 2018 · Q2Moderate
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- NDA · Sep 2018 · Q1Moderate
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- NDA · Apr 2020 · Q7Moderate
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- NDA · Apr 2021 · Q9Moderate
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- NDA · Apr 2023 · Q114Moderate
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- Set · 2 questionsFor the following two (02) items: Let and .
- NDA · Sep 2025 · Q23Moderate
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- NDA · Sep 2025 · Q24Moderate
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- NDA · Sep 2024 · Q8Moderate
#16Logarithm Identities, Change of Base, and Sums
- NDA · Sep 2017 · Q1Moderate
#17Solving Logarithmic Equations and Applications
#18Solving Logarithmic Equations and Applications
- NDA · Sep 2018 · Q31Moderate
#19Solving Logarithmic Equations and Applications
- NDA · Apr 2019 · Q72Moderate
#20Solving Logarithmic Equations and Applications
- NDA · Sep 2019 · Q36Moderate
#21Solving Logarithmic Equations and Applications
- NDA · Sep 2021 · Q3Moderate
#22Solving Logarithmic Equations and Applications
#23Solving Logarithmic Equations and Applications
#24Solving Logarithmic Equations and Applications
- NDA · Sep 2025 · Q4Moderate
#25Solving Logarithmic Equations and Applications
- NDA · Apr 2024 · Q27Moderate
#26Solving Logarithmic Equations and Applications
#27Solving Logarithmic Equations and Applications
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