Friday 9 October 2009

Weekend Riddle


A 10 metre ladder is attached to a ship.
Each step is 50 cm apart.
If the water is rising at 75 cm per hour, how long will it take to cover the ladder?

21 comments:

rebekahc said...

hey I think its 14 hours :)

Mr Gray said...

nope, try again

rebekah said...

it will never cover the ladder as the ship will float.
:s

Anna said...

Is it 7 hours

It Is VERY confusing

:):-)

Mr Gray said...

nope, you're wrong as well Anna.
1 person has got it right - I'll keep the answer hidden so the rest of you can stay confused.
have fun
;)

Anna said...

Lydia probaly has it!!:)

Anna said...

What belongs to you but others use it more???

Anna said...

Is it 13h and 20 minutes:)

s-j said...

hi mr gray is it 8 hours

:)

Mr Gray said...

sorry s-j and anna, you're both wrong
think about it
A 10 metre ladder is attached to a ship. Each step is 50 cm apart. If the water is rising at 75 cm per hour, how long will it take to cover the ladder?

Anna said...

It looks hard but it is probaly very easy!!

Mr Gray said...

it is easy

Anna said...

Is the answer Never(if the boat is floating and dosen't have a hole in it)

Mr Gray said...

2 people have the correct answer.
answer will be revealed on Monday morning

sj said...

im only gessing herebut is it 28 hours

s-j said...

i think it is 13 hours

Mr Gray said...

nope sj - both wrong
try again

Mr Gray said...

well done Anna and Rebekah.
It would take 9hours 20 mins to cover the ladder, but the important fact is that the ladder is attached to a boat and boats float. The answer is the water will never cover the ladder.
House point to each of you

Anna:) said...

Someone PLEASE answer my riddle


THANK YOU:)

Anna:) said...

The answer is your name

philip said...

It would take 9hours 20 mins to cover the ladder