Tom drove from Town P to Town Q at 45 km/h while Jerry drove from Town Q to Town P at 60 km/h. Town P is 210 km from Town Q. They will meet at 3 pm. Andy jogged from Town X at 100 m/min while Bernard jogged from Town Y at 150 m/min. Town X is 3 km from Town Y. They will meet after 12 minutes, and Andy will have jogged 1,200m. Mr Tan drove from Town X to Town Y at 70 km/h while Mr Krishnan drove from Town Y to Town X at 80 km/h. Town X is 225 km from Town Y. They will meet at 10:30

1. 1) At 1pm, Tom drove from Town P to Town Q at a speed of
45 km/h while Jerry drove from Town Q to Town P at a
speed of 60 km/h. Town P is 210 km from Town Q. At
what time will they meet?
D
S T
P Q
210 km
Tom
Speed – 45 km/h
Jerry
Speed – 60 km/h
Distance travel in 1 hour by Tom and Jerry –
(45 km/h × 1h) + (60km/h × 1h) = 105 km
Time they will meet –
210 km ÷ 105 km = 2 h
Ans: They will meet in 3 pm.

2. 2) Andy lived in Town X and Bernard lived in Town Y. They
started jogging at 6 am from their homes towards each
other in a straight path and met for breakfast. Andy
jogged at a speed of 100 m/min while Bernard jogged at a
speed of 150 m/min. If Town X was 3 km from Town Y,
how far had Andy jogged before they met each other?
D
S T
X Y
3 km
Andy
Speed – 100 m/min
Bernard
Speed – 150 m/min
Distance travel in 1 min by Andy and Bernard –
(100 m/min × 1 min) + (150 m/min × 1 min) = 250 m
Time they will meet –
3 000 m ÷ 250 m = 12 min
Ans: Andy had jogged 1 200m.
Distance Andy jogged –
100 m/min × 12 min = 1 200 m

3. 3) At 9 am, Mr Tan started driving from Town X to Town Y at
a speed of 70 km/h while Mr Krishnan started driving from
Town Y to Town X at a speed of 80 km/h. Town X is
225 km from Town Y. At what time will they meet?
D
S T
X Y
225 km
Mr Tan
Speed – 70 km/h
Mr Krishnan
Speed – 80 km/h
Distance travel in 1 h by Mr Tan and Mr Krishnan –
(70km/h × 1 h) + (80 km/h × 1 h) = 150 km
Time they will meet –
225 km ÷ 150 km = 1 h
Ans: They will meet at 10.30 am.
Time they meet –
9 am
2
1
1
2
1
10.30 am
h

4. Questions

5. 4) At 8.30 am, Tommy is driving from Town P to Town Q at a
speed of 45 km/h while Jerry is driving from Town Q to
Town P at a speed of 60 km/h. Town P is 210 km from
Town Q. At what time will they meet?
5) At 9 am, Tommy drove from Town C to Town D while
Janet drove from Town D to Town C at a speed of
45 km/h. Town C is 310 km from Town D. If they meet
after 2 h, what was Tommy’s speed at first.
6) At the same position on a straight road. Benedict and
Alan jogged in the opposite direction. With Alan jogging at
an average speed of 1.2 km/h slower than Benedict, the
two boys were 5.2 km apart after jogging for 30 minutes.
Find the average speed to Alan.

6. 8) City A was 885 km from City C. At 1100, Joe left City A for
City C at a speed of 80 km/h. 45 minutes later, Dan left
City C for City A at a speed of 70 km/h. At what time
would the 2 men pass each other?
7) Town S and Town T are 1 200 km apart. At 1120, Mary
drove from Town S to Town T at a speed of 65 km/h. At
the same time, Harry left Town T for Town S at a speed of
85 km/h. At what time would they pass each other?