These problems are different.
They use the same math you already know — but wrapped in ways you haven't seen before. There's no rush. Think slowly. Write your reasoning. The answer matters less than HOW you got there.
🎨 Unfamiliar Territory
Make ₹50 using exactly 5 coins. Now make ₹50 using exactly 10 coins. Which is harder?
Your thinking space:
🔗 Chain Reaction
You buy a pencil for ₹8. You pay with a ₹20 note. How much change? What coins could the change be?
Show each step:
💬 Explain Your Thinking
Why is a ₹500 note smaller than a ₹10 coin but worth more?
Explain in your own words:
🏆 Olympiad Teaser
Using only ₹2 and ₹5 coins, can you make exactly ₹19? Try all possibilities.
Think about what constraints the problem gives you. Write down what you KNOW for sure, then work from there. Often, trying small numbers first reveals a pattern.
Your answer and reasoning: