Veggie
Joined:
May 2020
Posts:
14,545
Threads:
605
|
|
(06-05-2023, 07:15 PM)Veggie Wrote: How about this one?
To get to the airport, I must travel at 60km/hr. Due to bad traffic, I discover that when I am half way there, I have only averaged 30km/hr.
How fast must I go for the second half of my journey to achieve my overall speed of 60km/hr? Come on, somebody must be able to do this one!
The Moneyless Chicken says:-
Use it up, wear it out, make it do or do without.
|
MartinH
Joined:
May 2020
Posts:
425
Threads:
5
|
|
It seems to me that you'd have to do the second half in zero time. That can't be right.
|
Veggie
Joined:
May 2020
Posts:
14,545
Threads:
605
|
|
Its the right answer, Martin.
The explanation :- Going half the distance at half the speed uses up all the time available! I would have to cover the last half of the journey instantly to get up to the desired average.
The Moneyless Chicken says:-
Use it up, wear it out, make it do or do without.
|
JJB
Joined:
May 2020
Posts:
7,499
Threads:
161
|
|
That's far too cerebral for me.
Gardening is an excuse not to do housework
Greetings from Salisbury
Qualified member of the Confused Nutter's Club
|
MartinH
Joined:
May 2020
Posts:
425
Threads:
5
|
|
It's easier to see if you put actual numbers in.
Assume the airport is 60km away. This means you have an hour to get there.
If you get half way at 30km an hour, it's taken you an hour already. There's no time left.
|
Veggie
Joined:
May 2020
Posts:
14,545
Threads:
605
|
|
That's how I "explained" it to myself but I went with 120 km so that I wouldn't get confused with the km/h.
The Moneyless Chicken says:-
Use it up, wear it out, make it do or do without.
|
Mark_Riga
Joined:
May 2020
Posts:
1,783
Threads:
38
|
|
But Einstein said that was not possible as he showed nothing can travel faster than light, so you are setting impossible questions now.
|
Veggie
Joined:
May 2020
Posts:
14,545
Threads:
605
|
|
Sorry to tell you all, but you've missed your flights.
The Moneyless Chicken says:-
Use it up, wear it out, make it do or do without.
|
Veggie
Joined:
May 2020
Posts:
14,545
Threads:
605
|
|
This puzzle looks easier.
Rearrange the letters to make three 6-letter words that are all synonyms of GOOD.
EEEHHINNOORRSTTTWY
The Moneyless Chicken says:-
Use it up, wear it out, make it do or do without.
|
Mark_Riga
Joined:
May 2020
Posts:
1,783
Threads:
38
|
|
Is one of the words entire?
|