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Primary General Studies: Transport and Communication in Hong Kong (Paper 1 (basics))
Primary General Studies: Transport and Communication in Hong Kong (Paper 1 (basics))
Paper one covers everyday Hong Kong transport, timetables and fares, moving from easy to harder sums that can all be checked with the four operations.
Direct answers Count the gaps before answering a timetable question, write the unit before a fare question, and check that the answer is sensible.
01 Paper details (check answers afterwards)
| Item | Detail |
|---|---|
| Questions | 10 |
| Suggested time | 20 |
| Difficulty mix | Foundation 3 · Intermediate 3 · Challenge 3 · Error redo 1 |
| Chapter | Chapter: Primary General Studies: Transport and Communication in Hong Kong |
| Level | parts of a closed circuit, conductors against insulators, series against parallel, adding up battery voltage, and electrical safety |
02 Questions (10 items)
- FoundationA bus leaves every 15 minutes from 8:00 a.m. until 10:00 a.m. How many buses leave in total?
- FoundationEach trip costs $12.5. How much is spent on two trips a day for five days?
- FoundationA card holds $35.5. After adding $100 and paying $12.6 for a trip, what is the balance?
- IntermediateA bus leaves at 8:05 a.m. and the journey takes 25 minutes. When does it arrive?
- IntermediateThe first ferry leaves at 6:00 a.m. and ferries run every 20 minutes. When does the fourth ferry leave?
- IntermediateA bus stops at 8 stops and waits 3 minutes at each. How much time is spent stopping?
- ChallengeA taxi charges $29 for the first 2 km and $9.5 for every extra kilometre. What is the fare for 6 km?
- ChallengeWalk 3 minutes to the stop, ride 18 minutes and walk 5 minutes more. What is the latest time to leave home to reach school by 8:00 a.m.?
- ChallengeAn email arrives in 3 minutes while a local letter takes 2 days. What is the difference in minutes?
- Error redoA section has 5 stations with 2.5 minutes between neighbouring stations. A classmate answers 7.5 minutes. What is correct?
03 Answers and one-line notes
| # | Answer | One-line note |
|---|---|---|
| 1 | Nine buses. | There are 120 minutes between 8:00 and 10:00, which gives 8 gaps, so 9 buses including the first. |
| 2 | $125.0. | Multiply 12.5 by 2 trips and then by 5 days to get 125 dollars. |
| 3 | $122.9. | Add 100 to 35.5 first, then subtract 12.6 to avoid sign errors. |
| 4 | At 8:30 a.m. | Adding 25 minutes to 8:05 a.m. gives exactly 8:30 a.m. |
| 5 | At 7:00 a.m. | The fourth ferry is three gaps after the first, which is 60 minutes later. |
| 6 | 24 minutes. | Eight stops of 3 minutes each make 24 minutes of stopping time only. |
| 7 | $67.0. | The first 2 km are inside the flag fall, so only 4 km are extra: 29 plus 4 times 9.5. |
| 8 | At 7:34 a.m. | The whole trip is 3 plus 18 plus 5, which is 26 minutes before 8:00 a.m. |
| 9 | 2 877 minutes. | Two days is 48 hours, or 2 880 minutes, and taking away 3 minutes leaves 2 877. |
| 10 | The correct answer is 10 minutes. | Five stations give 4 gaps, so 4 times 2.5 is 10 minutes; the classmate counted only 3 gaps. |
04 What to do after marking
- After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
- Repeat the same item two days later; move to the next paper only when both attempts are correct.
- Parents only need the answer and note columns; there is no need to explain every item.
After paper one, take paper two and sort out series against parallel in one pass.Tutor Registration →
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