When you keep money in a bank or borrow it, interest is paid for using the money. Simple interest is the same every year: principal (P) × rate (R% per year) × time (T years) ÷ 100.
Work it out in your head or on paper, then tap your answer — or type it and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
🏁 Lesson 14 test
20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.
🏅 Sign in with Google to earn the
🏦 Interest Investigator badge when you pass — and a certificate when you finish all 10 lessons of
Part 2 · Everyday maths. You can still take the test without signing in.
👩🏫 Quantitative aptitude classes — live online, request a call back
Prefer a real teacher? TalentJR teachers take live online classes anywhere in India. Tell us what
you need and our team will call you with timings and fees.
💻Live online classesSmall groups or 1:1 with a teacher, from home, any city.
📞We call you backOur team asks what your child needs, then shares timings and fees.
🏠Home tutor?We are still building our list of home tutors — ask on the call if there is one near you.
