- Lessons
- Free
- Quant - Arithmetic
Compound Interest Level - 1
The Compound Interest Level 1 Assessment is a foundational, 50-question module designed to introduce the mechanics of exponential financial growth. It focuses on the direct application of compounding formulas, calculating basic amounts, and understanding the concept of "interest on interest" over a suggested 45–50 minute time limit.
Choose Normal practice or a Simulated test.
Questions, answer key and solutions.
- Questions
- 50
- Duration
- 75 min
- Marks
- 50
- Attempts
- 100
- Access
- Free
Negative marking
Normal practice, or a Simulated test
The same questions, either way. Normal practice teaches; the simulated test tells you where you stand.
Normal
UntimedEvery question on one page, loading as you scroll. Choose an option and see straight away whether it was right.
- No timer. Nothing to start and nothing to submit. Stop whenever you like.
- Answered as you choose. Tap an option and it is marked at once, with the correct answer shown.
- Solutions in place. The explanation, and the video where one has been added, sit under the question.
- Open to guests. Normal practice needs no sign-in.
Simulated
Timed CBTThe computer-based test format: one clock, a question palette, and a score the moment you submit.
- A clock that does not pause. 75 minutes from the moment you begin, and the paper is submitted for you when it reaches zero.
- Question palette. Answered, not answered and marked for review, section by section, as the real interface has it.
- Full screen, proctored. The test takes over the screen; leaving it three times submits the paper.
- Answers hidden until you submit. The key, the explanations and your score all arrive together at the end.
About this test
This test serves as the essential stepping stone for mastering commercial mathematics, often utilized as core material for educational initiatives like Padhai Vadhai. It tests calculation speed and the ability to use ratio or fraction methods to bypass heavy decimal multiplication.
Target: Designed to build speed and conceptual clarity regarding the basic compounding cycle.
Core Syllabus & Question Types:
Direct Formula Application: Finding the Amount or Compound Interest (CI) using the primary formula: Amount = P * (1 + R/100)^T and CI = Amount - P.
Different Compounding Cycles: Adjusting the rate and time for half-yearly (semi-annual) and quarterly compounding. Rule of thumb: For half-yearly, Rate becomes R/2 and Time becomes 2T.
Successive Percentage Change: Treating compound interest as successive percentage increases. For a 2-year period at R%, the effective CI rate is (R + R + (R*R)/100)%.
Multiples: Standard problems asking how long it takes for a sum of money to become 4 times or 8 times itself at compound interest, utilizing power and base logic.
Test structure
How the paper is split, and how long each part runs. A section you have finished cannot be returned to.
| Section | Questions | Time |
|---|---|---|
| Compound Interest Level 1 | 50 | 75 min |
Marking & rules
- Total marks
- 50 across 50 questions.
- Negative marking
- A wrong answer costs marks. Leaving a question unanswered costs nothing.
- Attempts
- 100 in total. An attempt is spent the moment you begin one.
What you get when you submit
The analysis is ready the moment you submit the paper.
Score and accuracy
Marks, percentage, right, wrong and skipped, and the time you took.
Section by section
The same figures for each section, so a weak one cannot hide in an average.
The full answer key
Every question with your answer, the right one, the working, and the video where there is one.
Where you stand
Your score against the spread of everyone else who has sat this test.