Asked by Saleh
A man cycles to a village at 18km/h and returns at 12km/h. If it takes 6 1|2 hours for the double journey, how far does he ride all together
Answers
Answered by
Reiny
The distance each way would of course be the same.
let that distance be x km
x/18 + x/12 = 6.5
I would now multiply each term by 36, the LCM to have nice whole numbers
then solve for x
Let me know what you get.
let that distance be x km
x/18 + x/12 = 6.5
I would now multiply each term by 36, the LCM to have nice whole numbers
then solve for x
Let me know what you get.
Answered by
henry2,
d1 = d2.
18*T = 12*(6.5-T).
Divide both sides by 6:
3T = 2(6.5 - T),
3T = 13 - 2T,
T = 2.6 h. to the village.
d1 = 18*T = 18*2.6 = 46.8 km to the village. =
d1 + d2 = 46.8 + 46.8 = 93.6 km.
18*T = 12*(6.5-T).
Divide both sides by 6:
3T = 2(6.5 - T),
3T = 13 - 2T,
T = 2.6 h. to the village.
d1 = 18*T = 18*2.6 = 46.8 km to the village. =
d1 + d2 = 46.8 + 46.8 = 93.6 km.
Answered by
FAJEMILUA TOLUWANI
I think 93.6km is not the answer. It should be 90km
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.