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Percent means “out of 100”, so 35% is 35/100. Three formulas cover almost every question: x% of y, what percent one number is of another, and finding the whole when you know a part.
✓ You passed this lesson’s test.
Out of 100 — “x% of y = x × y ÷ 100; percent = part ÷ whole × 100”
Use it for: Marks and results, discounts, interest, data interpretation and every Part 2 lesson.
🧮 Check your own sums with the free Percentage calculator — it shows the working.
Check: 35% of 80 = 35 × 80 ÷ 100 = 28 ✓
▶ Watch it animatedWork it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
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 💯 Percent Pathfinder badge when you pass — and a certificate when you finish all 10 lessons of Part 1 · Number skills. You can still take the test without signing in.
Why does it work? When should you use it? Ask in English, मराठी or हिंदी.
Sign in with Google to ask Free — 20 questions a day.
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