## Very challenging Higher Maths Question - apparently

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Very challenging Higher Maths Question - apparently

09-10-2015 2:04 PM

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Except from my 'A' Level Maths it is obvious how to do it

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Re: Very challenging Higher Maths Question - apparently

09-10-2015 2:23 PM

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Doesn't look very difficult though and if all else fails draw a graph!

If you're bored work out the width of the river and the speeds on land and in the water, not that you need to to solve it.

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Re: Very challenging Higher Maths Question - apparently

09-10-2015 6:52 PM

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Re: Very challenging Higher Maths Question - apparently

09-10-2015 8:01 PM

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i) Not long, the crocodile is hungry

ii) Not long, the crododile is hungry

b)

x = a lot shorter than the rest of the 20 meters in the diagram

T is a lot shorter

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Re: Very challenging Higher Maths Question - apparently

09-10-2015 9:13 PM

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Quote from: twocvbloke 42...

lol - not a bad answer

divide 42 by 4.2424242 would be closer

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Re: Very challenging Higher Maths Question - apparently

09-10-2015 9:14 PM

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Re: Very challenging Higher Maths Question - apparently

09-10-2015 9:41 PM

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(And I used commonsense/ratios rather than calculus)

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Re: Very challenging Higher Maths Question - apparently

10-10-2015 8:16 AM

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Quote from: HPsauce 98 seconds

I was a factor of 10 out, I made it 9.8 seconds

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Re: Very challenging Higher Maths Question - apparently

10-10-2015 8:52 AM

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But rethinking it as a geometric problem gets the answer quite quickly.

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Re: Very challenging Higher Maths Question - apparently

10-10-2015 9:18 AM

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To be is to do - Kant

do be do be do - Sinatra

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Re: Very challenging Higher Maths Question - apparently

10-10-2015 9:52 AM

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Re: Very challenging Higher Maths Question - apparently

10-10-2015 12:11 PM

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Re: Very challenging Higher Maths Question - apparently

10-10-2015 8:35 PM

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the only people I know of that actually sit down and figure it out as some kind of equation on paper are geeks, the conundrum posed is only relevant if you can communicate to the animal a faster more fuel efficient method of arriving at the desired outcome (which means it can learn from you) making the entire exercise pointless and not worth doing ....

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Re: Very challenging Higher Maths Question - apparently

12-10-2015 7:16 PM

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Crocodiles attack their prey by attacking from water and dragging it underwater so it drowns.

They also "stalk their prey" by swimming slowly & stealthily i.e. slowly.

The land speed record for a crocodile is 17 km/h (11 mph) [Wikipedia].

Since the drawing indicates a zebra (which are quite speedy animals), the crocodile has no chance if it tries to chase it on land.

Not even if it can do differential calculus.

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Re: Very challenging Higher Maths Question - apparently

12-10-2015 10:48 PM

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