Revenge

[Oldgreybeard]

I've wasted 5 minutes of my life watching Grumpy John's "80 mph" post (including "Deer Crossing" video) and need to get even

William and Kate (you may have heard of them) go walking hand-in-hand around their estate. The walk is 5 kilometrs in length.

Before starting they record their vital statistics:

	William	Kate
Blood pressure	125 / 78	128 / 80
Pulse rate	65 bpm	70 bpm
Respiration rate	12	15
Height	187cm	165cm
Weight	85 Kg	70kg
Length of stride	93cm per step	82cm per step

The walk takes 1 hour and they then compare their vital statistics against those recorded before the walk.

William is obviously in great physical condition and there is virtually no change between his starting and ending stats. Only his Pulse rate increased noticeably from 65 to 86 bpm.

On the other hand Kate is still to regain her pre – pregnancy fitness; her stats have changed significantly:

	Before	After
Blood pressure	128 / 80	132/ 85
Pulse rate	70 bpm	122 bpm
Respiration rate	15	19
Height	165cm	n/c
Weight	70kg	n/c
Length of stride	82cm per step	78cm per step

At the start of the walk Kate was taking 122 steps per 100 meters compared with Willam’s 107. During the last 100 meters, Kate took 128 steps - an increase of almost 5% in the number of steps: William took exactly the same number of steps as he took in the first 100 meters. In total, Kate took 6245 steps compared with Wiliam’s 5350; almost 17% more steps than William .

Question 1: What is William’s average walking speed?

Question 2: Is Kate’s average walking speed –
a. 17% higher than William’s?
b. 5% higher than William’s?
c. 17% lower than William’s?
d. 5% lower than William’s?
e. the same as William’s ?

This should be easy, so I reckon I am still owed at least 4 minutes

Bob

[DavidG]

Too simple.

[Kuffy]

I've wasted 5 minutes of my life watching Grumpy John's "80 mph" post (including "Deer Crossing" video) and need to get even

William and Kate (you may have heard of them) go walking hand-in-hand around their estate. The walk is 5 kilometrs in length.

Before starting they record their vital statistics:

	William	Kate
Blood pressure	125 / 78	128 / 80
Pulse rate	65 bpm	70 bpm
Respiration rate	12	15
Height	187cm	165cm
Weight	85 Kg	70kg
Length of stride	93cm per step	82cm per step

The walk takes 1 hour and they then compare their vital statistics against those recorded before the walk.

William is obviously in great physical condition and there is virtually no change between his starting and ending stats. Only his Pulse rate increased noticeably from 65 to 86 bpm.

On the other hand Kate is still to regain her pre – pregnancy fitness; her stats have changed significantly:

	Before	After
Blood pressure	128 / 80	132/ 85
Pulse rate	70 bpm	122 bpm
Respiration rate	15	19
Height	165cm	n/c
Weight	70kg	n/c
Length of stride	82cm per step	78cm per step

At the start of the walk Kate was taking 122 steps per 100 meters compared with Willam’s 107. During the last 100 meters, Kate took 128 steps - an increase of almost 5% in the number of steps: William took exactly the same number of steps as he took in the first 100 meters. In total, Kate took 6245 steps compared with Wiliam’s 5350; almost 17% more steps than William .

Question 1: What is William’s average walking speed?

Question 2: Is Kate’s average walking speed –
a. 17% higher than William’s?
b. 5% higher than William’s?
c. 17% lower than William’s?
d. 5% lower than William’s?
e. the same as William’s ?

This should be easy, so I reckon I am still owed at least 4 minutes

Bob

stop reading women's magazines!

[Oldgreybeard]

stop reading women's magazines!

Actually I first came across this some years ago in a 1st year university physics lecture (I have updated the names of the people concerned) It was used as an exercise in "seperating the oats from the chaff"- identifying relevant data and the keywords which clarify the question.
Not sure whether the responses here are a reflection of the intelligence of members of this forum or a statement as to the standard of modern education - From memory the lecturer claimed that almost 40% selected option C as the answer for the second question. He indicated that the extraneous detail was purely to create confusion between speed and energy consumed.

Bob

[Kuffy]

lol @ 40% of people selecting option C. its like asking what weighs more? a tonne of bricks or a tonne of feathers.

i still reckon this kind of article will be written in some women's magazine, because i can see it causing an argument between chicks lacking basic logic and confusing the situation using mathematics. and yes, im sure a few calculators will be brought out to "prove" the arguments

[Chesand]

It is an exercise in 'clear thinking' as it was called in my day.

[Oldgreybeard]

It is an exercise in 'clear thinking' as it was called in my day.

I agree.

[Chesand]

I agree.

I see that we are of similar vintage.

[A Duke]

In my day it was BSBB.

[Chesand]

In my day it was BSBB.

That still applies today.

[A Duke]

Do not Google it, Google has a dirty mind.
Work it out for your self , the first B is bull.

[Chesand]

Do not Google it, Google has a dirty mind.
Work it out for your self , the first B is bull.

The cleaner version is BDBB. That should give a clue.

[Grumpy John]

I need more information:
Was George with them, if so did he walk or was he carried?
Was Charlotte with them, if so what diameter are the wheels on the pram, and how many times do they turn per kilometer?

[FenceFurniture]

I need more information:
Was George with them, if so did he walk or was he carried?
Was Charlotte with them, if so what diameter are the wheels on the pram, and how many times do they turn per kilometer?

Give 'im some false clues OGB - he owes 5 minutes to half the forum .

[DaveTTC]

E

Dave TTC
Turning Wood Into Art