Nội dung text WK8 - Y5 - TS - HW - Finding Procedures - AN.docx.pdf
NO. ANSWER 1 Since the question only asks for the number of metres of wool used over the last month, we only multiply the number of hand-made bags produced by the number of metres used for one bag. 521 x 4.7m = 2,448.7m Option C is the correct answer. 2 Let's break down the problem step by step to find how far behind the hare was when the tortoise crossed the finishing line. Tortoise's Progress: 1. Speed of the tortoise: 0.1 metres per second. 2. Time taken to complete the 800 metres: Time = Distance / Speed = 800 metres / 0.1 metres/second = 8000 seconds Hare's Progress 1. Hare starts 2 hours late (7200 seconds). 2. Hare's initial speed: 4 metres per second for 360 metres. Time to cover 360 metres = 360 metres / 4 metres/second = 90 seconds 3. Hare's remaining distance after 360 metres: 800 metres - 360 metres = 440 metres 4. Hare's reduced speed after pulling a muscle: 0.5 metres per second for 440 metres. Time to cover 440 metres = 440 metres / 0.5 metres/second = 880 seconds 5. Total time for hare running: 90 seconds + 880 seconds = 970 seconds Total Time Comparison 1. Hare starts 2 hours (7200 seconds) after the tortoise. 2. Total time for the hare to complete the race: 7200 seconds + 970 seconds = 8170 seconds 3. Tortoise takes 8000 seconds to complete the race. Difference 1. Time difference when tortoise finishes: 8170 seconds - 8000 seconds = 170 seconds 2. Hare's speed after pulling a muscle: 0.5 metres per second. 3. Distance covered by hare in 170 seconds: 0.5 metres/second *170 seconds = 85 metres Therefore, the hare was 85 metres behind the tortoise when the tortoise crossed the finish line. Option B is the correct answer. ©Scholarly 2025. All rights reserved. All digital content and materials provided are proprietary and protected under copyright law. Any reproduction or sharing of digital files, including screenshots, recordings, or downloads, is strictly prohibited without the prior written consent of Scholarly. 1