1. The width of a road is measured as 15.3 m wide. What is the percentage error correct to one decimal place of this measurement?

2. Rainwater from the roof of a house is collected in a tank beside the house. During a storm, 12 mm of rain fell on the roof. If the area of the roof is 49 m^2 , how many litres of water collected in the water tank due to the storm?

3. What is the surface area of a globe of the world, which has a diameter of 30.4 cm? Answer to the nearest square centimetre

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