- A600 km
- B450 km
- C150 km
- D360 km
Step-by-Step Solution
The needle is at of a 40 L tank: L. The car runs km per litre, so km. (600 km uses a full tank; 150 km uses the empty 10 L.)
Answer: B) 450 km
Mr Iyer's car uses petrol in proportion to the distance. On the last trip it used the petrol shown on the card. The gauge shows the petrol in the tank now. How far can the car go with this petrol?
Class 6Ratio and ProportionRatio and Proportion
Key idea: What a ratio means
The ratio 2 : 3 says: for every 2 of one thing, there are 3 of another. In a fruit basket of 2 apples and 3 oranges, the ratio of apples to oranges is 2 : 3. **Order matters** — the ratio of oranges to apples in the same basket is 3 : 2. The two quantities must be in the same unit (you can't ratio apples to kilograms unless you convert).
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