Question: Question 3 - 20 marks This question is based on your work on MU123 up to and including Unit 2. (a) Ana went walking every

Question 3 - 20 marks This question is based on your work on MU123 up to and including Unit 2. (a) Ana went walking every day during lockdown. The walk from her home to the park and back was 2.4 km long and it took her 25 minutes. Calculate the average speed for this walk, giving your answer in km/h. [4] (b) Ana decides to include an extra lap of the park, increasing the distance to 3.1 km. Calculate the time that this longer walk will take if Ana walks at an average speed of 5.8 km/h. Give your answer in minutes, correct to two significant figures. [6] (c) Ana's friend suggests that she might tackle a walk on a local hill. The distance of the walk on a map with a scale of 1: 25 000 is 13.7 cm. Calculate the corresponding distance on the ground. Give your answer in km correct to two significant figures. [5] (d) The lowest point on this walk is 105m above sea level and the highest point is 213 m above sea level. Let h represent the height in m above sea level. (i) Explain what the inequality h

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