Shawn's answer to Jo's Primary 6 Maths Speed Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Time taken for jack: 48/80 = 36 mins
Time take for Ryan: 36+10= 46 mins
Distance for Ryan: (in hours) 46/60 x 60 = 46km
In order of Ryan to reach at the same time, he needs to cover 46km in 36mins.
36mins=36/60 hours
= 0.6hours
Average speed = 46/0.6
= 76.67km/h
Time take for Ryan: 36+10= 46 mins
Distance for Ryan: (in hours) 46/60 x 60 = 46km
In order of Ryan to reach at the same time, he needs to cover 46km in 36mins.
36mins=36/60 hours
= 0.6hours
Average speed = 46/0.6
= 76.67km/h
Date Posted:
4 years ago
Thank you! Do you know the answer for qn 41 as well?
Working on it right now. Did you learn basic algebra?
Yes I did
You can also leave the answer in the exact form 76⅔ km/h
Thanks!
360 Tutoring Program