Primary General Studies: Hong Kong Public Transport And Road Safety (Paper 4 (error Clinic))

Primary General Studies: Hong Kong Public Transport and Road Safety (Paper 4 (error clinic))

2026-11-14

Tutor Prep Guide · Transport types, the three-look rule, headways and fares

Primary General Studies: Hong Kong Public Transport and Road Safety (Paper 4 (error clinic))

This paper retrains the common errors: keeping left, flashing green figures, standing upstairs, headways, taxi fares, speed and discounts.

Direct answers　Write the base figure and the units in rough work before multiplying or dividing.

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: Hong Kong Public Transport and Road Safety
Level	P5

02　Questions (10 items)

FoundationDo Hong Kong vehicles keep left or right?
FoundationMay you start crossing when the green figure is flashing?
FoundationMay passengers stand on the upper deck of a bus?
IntermediateA bus runs every 12 minutes and the first bus leaves at 08:00; when does the third bus leave?
IntermediateTwo journeys a day at 5.5 dollars each over 5 school days cost how much?
IntermediateA walk of 1.8 km at 4.5 km per hour takes how many minutes?
ChallengeA taxi flag fall of 29 dollars covers the first 2 km and each extra km costs 9 dollars; what is the fare for 4 km?
ChallengeA 40 dollar fare gets ten per cent off with electronic payment; how much is paid?
ChallengeA bus travels at 45 km per hour for 30 minutes; what distance does it cover?
Error redoMust you still watch for vehicles on a zebra crossing or a signal crossing?

03　Answers and one-line notes

#	Answer	One-line note
1	They keep to the left.	Hong Kong traffic keeps left, so vehicles travel on the left of the road.
2	No.	Flashing means the time is nearly over, so wait for the next green figure.
3	No, standing upstairs is not allowed.	Sit down and hold the rail upstairs to avoid injury in sudden braking.
4	At 08:24.	Two headways of 12 minutes is 24 minutes.
5	55 dollars.	5.5 times 2 times 5 is 55.
6	24 minutes.	1.8 divided by 4.5 is 0.4 hour, that is 24 minutes.
7	47 dollars.	Two extra kilometres cost 18 dollars, and 29 plus 18 is 47.
8	36 dollars, saving 4 dollars.	Ten per cent off means paying ninety per cent, and 40 times 0.9 is 36.
9	22.5 km.	30 minutes is half an hour, and 45 times 0.5 is 22.5.
10	Yes; look before stepping out and watch for turning vehicles.	Having priority does not mean the driver has seen you.

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.

Plan the route and check the timetable before setting out; always look right, left and right again before crossing; never start on a flashing green figure; check fares and times with a calculation.Tutor Registration →

Questions and answers are written originally by the TutorZone team and are not taken from any school, publisher or examination authority paper. Every value is checked by computer.