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ACADIFY · MIXED KNOWLEDGE CHALLENGE

Mixed Knowledge
Connect the Dots.

Real-world problems rarely fit into a single subject. Combine maths, science, logic, technology, economics, and everyday awareness to find the best solutions.

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THINK · CONNECT · SOLVE

Can you connect what you know?

These questions challenge you to apply different kinds of knowledge to everyday situations. Think carefully, analyse the information, and choose the best answer.

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🧠 10 Questions ⏱️ About 15–20 Minutes 💡 Multi-Subject Reasoning

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1. A family replaces five 100 W bulbs with five 20 W LED bulbs. They use the lights for 5 hours every day. If electricity costs ₹8 per unit (kWh), approximately how much do they save in 30 days?
2. A pressure cooker cooks food faster than an open pot because the pressure inside it is higher. What is the main scientific reason?
3. A city receives heavy rainfall, but its reservoirs remain low. Most rainwater flows over concrete roads into drains and reaches the sea. Which action would best address the underlying problem over time?
4. A shop advertises a jacket for ₹2,000 with a 20% discount. At checkout, a further 10% discount is applied to the reduced price. What is the final price?
5. Your phone battery drains unusually quickly after you install an unfamiliar app. The app also requests access to your contacts and location even though it does not need them for its main function. What is the most sensible response?
6. A bus travels 60 km at an average speed of 30 km/h and then another 60 km at 60 km/h. What is its average speed for the entire 120 km trip?
7. A coastal town depends heavily on tourism. A major oil spill contaminates nearby beaches. Even businesses that do not directly handle oil may lose income. Which explanation best describes this wider economic effect?
8. A student claims that a plant kept in a closed, dark cupboard for several days will grow normally because it receives water. Which response is most scientifically accurate?
9. A social media post claims that an earthquake will definitely strike a particular city tomorrow. It provides no source or scientific evidence. What should a responsible reader do first?
10. Two identical water tanks are filled at the same time. Pipe A fills one tank in 6 hours, while Pipe B fills one tank in 3 hours. If both pipes are used together and their flow rates remain constant, how long will they take to fill one empty tank?

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