Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Maths
| Speed
One Answer Below
Anyone can contribute an answer, even non-tutors.
Help please
Date Posted: 5 years ago
Views: 308
in 2.5+3 = 5.5h ,
lorry travels 60x5.5 = 330 km
to catch up, car must travel 330 km in 3h's time.
avg speed of car is 330/3 = 110 km/h
...
lorry travels 60x5.5 = 330 km
to catch up, car must travel 330 km in 3h's time.
avg speed of car is 330/3 = 110 km/h
...
See 1 Answer
360 Tutoring Program