Class 7–8 · Percentages
The discount that lies
Step 1 · Predict
Step 2 · Experiment
Watch the price tag
The blue bar is the price. Each block is an equal part. Tap the buttons in order.
₹100
₹100 split into 5 equal parts. Each part is ₹20 — that's 20%.
Price lab
Is ₹96 a fluke? Change anything. Complete the missions.
- Keep +20% and −20% but change the starting price. Still a loss?
- Do the discount first. Does that help Dinesh's customers?
- Try +50% then −50%.
- Keep the 20% discount. Find the increase that it exactly cancels.
Step 3 · Observe
Answer from what you saw. No slider for these — use the pattern.
Step 4 · Explain
True or false?
Dinesh's nephew wrote these notes. Mark each one.
Step 5 · Transfer
New numbers every time. Your first try counts. A rough calculation on paper is fine.