At 6 a.m., Bryan left Hotel J in his car and travelled towards Hotel K at 72 km/h. At the same time, Glen left Hotel J in his car and travelled in the opposite direction towards Hotel L. When Glen reached Hotel L at 8.15 a.m., Bryan was 16 km away from Hotel K.
- What was the distance from Hotel J to Hotel K?
- If the distance between Hotel K and Hotel L was 340 km, what was Glen's speed?
(a)
From 6 a.m. to 8.15. am = 2 h 15 min
60 min = 1 h
1 min =
160 h
15 min =
1560 =
14 h
2 h 15 min = 2
14 h
Distance from Hotel J to Hotel K
= 72 x 2
14 + 16
= 72 x
94 + 16
= 162 + 16
= 178 km
(b)
Distance travelled by Glen
= 340 - 178
= 162 km
Glen's speed
= 162 ÷ 2
14 = 162 ÷
94 = 162 x
49 = 72 km/h
Answer(s): (a) 178 km; (b) 72 km/h