One for the nerds

veryangryman

No googling please!


If a crab and a half weigh a pound and a half, but the half crab weighs half as much again as the whole crab, what do half the whole crab and the whole of the half crab weigh?

tcawley29

half a pound

1.2 pounds.
Whole crab is 0.6, half crab is 0.9.

BrokenArrows

one pound.

Eponymous

1.2 lbs.

Zaph

What if it's a lobster?

GBX

Get yourself to a doctor for the crabs

Are Am Eye

x+x/2=1.5
x=.5
x=half a crab=.5=half a pound


what do half the whole crab - a convoluted way of saying half a crab - half a pound
and whole of the half crab - a convoluted way of saying half a crab - half a pound

so half a pound plus half a pound giving one pound.

corner of hells

Four , no green.
Wait, was he wearing a hat ?

N.96

x = whole crab
y = half crab

x + y = 1.5
y = 1.5x

x = 0.6
y = 0.9

x/2 + 2y = answer

Ans: 2.1 pounds

The Backwards Man

There's no such thing as half a hole

MarkR

My own fathers son is me, so the answer is Mark. Unless it's tuesday, because every month has 28 days.

Seth Brundle

Obviously forgets the GoMetric campaign! :rolleyes:

bmwguy

veryangryman wrote: »

No googling please!


If a crab and a half weigh a pound and a half, but the half crab weighs half as much again as the whole crab, what do half the whole crab and the whole of the half crab weigh?

Half crab x and full crab you = 1.5

X +y = 1.5
Y=1.5x

X + 1.5x = 1.5
2.5X = 1.5
X=1.5/2.5
X=0.6 (whole crab)
Y=0.6*1.5=0.9 (half crab)

So your question, half the whole crab and and the whole of the half crab

(0.6/2) + (0.9*2) = 0.3 + 1.8 = 2.1 lbs

Am I right and if so what do I win?

osarusan

3lbs 50

dilallio

Is the half crab alive or dead?

Wossack

veryangryman wrote: »

No googling please!
If a crab and a half weigh a pound and a half

crab = X
halfcrab = Y

X + Y = 1.5lbs

veryangryman wrote: »

but the half crab weighs half as much again as the whole crab

Y = X + Y/2
Y - Y/2 = X
X = Y/2

From above

X + Y = 1.5
Y/2 + Y = 1.5
1.5Y = 1.5
Y = 1
X = 0.5

veryangryman wrote: »

what do half the whole crab

X/2 = 0.25

veryangryman wrote: »

and the whole of the half crab weigh?

2Y = 2


So Im guessing 2 1/4 lbs


'but the half crab weighs half as much again as the whole crab' is a head scratcher..

Mena Mitty

1.1/2 lbs.

robinph

veryangryman wrote: »

No googling please!


If a crab and a half weigh a pound and a half, but the half crab weighs half as much again as the whole crab, what do half the whole crab and the whole of the half crab weigh?

All of the half a crab is still only half a crab, unless you are magicking the missing half back into existence.

Quazzie

2.1lbs

blacklilly

bmwguy wrote: »

Half crab x and full crab you = 1.5

X +y = 1.5
Y=1.5x

X + 1.5x = 1.5
2.5X = 1.5
X=1.5/2.5
X=0.6 (whole crab)
Y=0.6*1.5=0.9 (half crab)

So your question, half the whole crab and and the whole of the half crab

(0.6/2) + (0.9*2) = 0.3 + 1.8 = 2.1 lbs

Am I right and if so what do I win?

My head hurts

veryangryman

I think the lads who said 1 are correct.

Crab and a half = a pound and a half
So like for like Crab and a half = 1.5
Crab = 1 pound

bmwguy

Who wasnt listening in algebra class it's pretty straightforward to work out.

Your Face

Good sized baby.
Small turkey though.

pickarooney

The question is ambiguous at best, deliberately badly worded at worst.

'A crab and a half' in English means 1.5 crabs but you redefine it as two unrelated entities which are mathematically dissimilar but grammatically identical.

It gets worse from there as 'the whole of the half crab' can mean the entirety of the entity encapsulated by 'half crab' as a lexical unit or a supputed double-value of 'half-crab'.

m5ex9oqjawdg2i

The Backwards Man wrote: »

There's no such thing as half a hole

Actually not true, in Amsterdam I met this beautiful lady who said I could half her whole for 50 euro.

Cee-Jay-Cee

£3lbs fiddy.

blacklilly

veryangryman wrote: »

No googling please!


If a crab and a half weigh a pound and a half, but the half crab weighs half as much again as the whole crab, what do half the whole crab and the whole of the half crab weigh?

Here goes

1/2 a crab is half as much AGAIN as the whole crab = 2.25pounds
1/2 the whole crab = .75 pounds
Answer = 3 pounds

N.96

It's all in the wording...

If a crab and a half weigh a pound and a half, but the half crab weighs half as much again as the whole crab, what do half the whole crab and the whole of the half crab weigh?

They tell us: "a crab and a half weigh a pound and a half"

Where
x = the whole crab
y = the half crab (note that y represents HALF the crab and not the full crab so 2y = this crabs full weight)

So
x + y = 1.5


Now, the most important line: "the half crab weighs half as much again as the whole crab"

The two crabs are NOT the same i.e. the half crab does not weigh half as much as the whole crab. In this case they are actually saying the the half crab weighs MORE than the full crab. In fact, the half crab weighs the same as the whole crab plus another half of that whole crab!

So
y = 1.5x

And then we solve simultaneously to get the values of x and y:
Equation 1: x + y = 1.5
Equation 2: y = 1.5x

Rearrange to get y in terms of x
Eq 1: y = 1.5 - x
Eq 2: y = 1.5x
and y = y so, therefore,
1.5 - x = 1.5x

Rearrange to find the value of x
1.5 = 1.5x + x
1.5 = 2.5x
x = 0.6

And we know that y = 1.5x
So
y = 1.5(0.6)
y = 0.9

So now that we have our values for x and y
x = 0.6
y = 0.9

We can get to the actual question part: "what do half the whole crab and the whole of the half crab weigh"

Remembering that
x = the whole crab
y = half of the 'half crab'

But the question asks us for
HALF of 'the whole crab' (x)
and THE WHOLE OF 'the half crab' (y)

So basically what we want is
1/2 of x + 2y
i.e. 0.5x + 2y = answer

And we know that
x = 0.6
y = 0.9

So
0.5(0.6) + 2(0.9) = 0.3 + 1.8 = 2.1

Giving our final and correct answer of...
2.1 pounds

Liam28

veryangryman wrote: »

No googling please!


If a crab and a half weigh a pound and a half, but the half crab weighs half as much again as the whole crab, what do half the whole crab and the whole of the half crab weigh?

Ambiguously worded but the two crabs are clearly different sizes. So if:
'half as much again' = 150% or 1.5
and
''the whole of the half crab' = 2 halves of this crab to make 1 full.
Then crab = 0.6, half = 0.9, answer = 0.6/2 + 0.9*2 = 2.1

corner of hells

N.96 wrote: »

It's all in the wording...

If a crab and a half weigh a pound and a half, but the half crab weighs half as much again as the whole crab, what do half the whole crab and the whole of the half crab weigh?

They tell us: "a crab and a half weigh a pound and a half"

Where
x = the whole crab
y = the half crab (note that y represents HALF the crab and not the full crab so 2y = this crabs full weight)

So
x + y = 1.5


Now, the most important line: "the half crab weighs half as much again as the whole crab"

The two crabs are NOT the same i.e. the half crab does not weigh half as much as the whole crab. In this case they are actually saying the the half crab weighs MORE than the full crab. In fact, the half crab weighs the same as the whole crab plus another half of that whole crab!

So
y = 1.5x

And then we solve simultaneously to get the values of x and y:
Equation 1: x + y = 1.5
Equation 2: y = 1.5x

Rearrange to get y in terms of x
Eq 1: y = 1.5 - x
Eq 2: y = 1.5x
and y = y so, therefore,
1.5 - x = 1.5x

Rearrange to find the value of x
1.5 = 1.5x + x
1.5 = 2.5x
x = 0.6

And we know that y = 1.5x
So
y = 1.5(0.6)
y = 0.9

So now that we have our values for x and y
x = 0.6
y = 0.9

We can get to the actual question part: "what do half the whole crab and the whole of the half crab weigh"

Remembering that
x = the whole crab
y = half of the 'half crab'

But the question asks us for
HALF of 'the whole crab' (x)
and THE WHOLE OF 'the half crab' (y)

So basically what we want is
1/2 of x + 2y
i.e. 0.5x + 2y = answer

And we know that
x = 0.6
y = 0.9

So
0.5(0.6) + 2(0.9) = 0.3 + 1.8 = 2.1

Giving our final and correct answer of...
2.1 pounds

Jesus wept.

MarkR

Jesus can't do sums?