Simple and Compound Interest
34 CDS Mathematics previous year questions (PYQs) from 20 papers, 2017 to 2026, with answers and worked solutions.
About this chapter
- Difficulty: 8 easy · 21 moderate · 5 hard.
- Most-asked subtopics: Simple Interest (13), Compound Interest (13), Instalments and Difference of SI and CI (8).
- Updated 20 September 2026.
- Set · 2 questionsFor the next two (02) items that follow : A person borrows a sum of Rs. 16,000 on simple interest at the beginning of a year. After 4 months, Rs. 24,000 more is borrowed at a rate of interest double the previous one. At the end of the year, the total interest on both the loans is Rs. 4800.
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