SG
chevron_right
Primary 6
chevron_right
Number and Algebra
Replies
2
Yueh Mei Liu
6 years ago
Sh Lim
Thks
6 years ago
Sh Lim
Asked 9 years ago
SG
chevron_right
Primary 6
chevron_right
Number and Algebra
Hi, can someone help me with these 2 qns? TIA
Replies
2
Peter Back
for the speed question. note E completed 12/15 of the journey and A only 10/15 of the journey. Thus the ratio of distances is 12
6 years ago
Peter Back
Thus the ratio of distance is 12:10. If the time is the same the ratio of distance and speed is the same. Thus the ratio of speed is 12:10. As a result 2 units is 12 km/h 10units is 60km/h