Q1. Andy walks at a certain speed. With that speed , he covers a distance of 4 km. He then doubles his speed and covers another 16 km. The total time taken by him is 3 hours. What is Andy's speed?

A. 1km/h B. 2 km/h C. 3 km/h D. 4 km/h

Q2. Darrel has a mixture of spirit and water in the ratio 4:5. He adds 4 L of a mixture having spinit and water in the ratio 4:5 to the original mixture. Finally, he adds 2 L of water to the resulting mixture. The final ratio of spirit and water was 3:5. What was the initial volume of water in the mixture?

A. 6 L B. 8 L C. 10 L D. 12 L

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