The Student Room Group

Table question II

Please refer to the attachment.
The answer is B.
Can you please explain how you get to the answer.

My ideas so far:
15x4=60cm
38 approx = 40x4=160cm
If we choose the one with width 160cm then we only need a length of 60cm.
2.80/160x60= £1.05 which is not an option.
(edited 3 years ago)
Reply 1
15 by160 Width.
So 20 by 160 width= 56p
Reply 2
Original post by mqb2766
15 by160 Width.
So 20 by 160 width= 56p


Ahh that’s really cool. I didn’t even think to layout the pattern one on top of the other. What made you think to do that?
Is it because laying it out horizontally wastes a lot of material? As in, horizontally we get 40/60cm and the smallest width available is 100cm.

(Please excuse my drawing, I drew it roughly I realise I shouldn’t have left any gaps and the shapes should be the same size)

66D465BA-0E85-4C9C-AD50-4B4C127DA9AA.jpg.jpeg
(edited 3 years ago)
Reply 3
Original post by As.1997
Ahh that’s really cool. I didn’t even think to layout the pattern one on top of the other. What made you think to do that?
Is it because laying it out horizontally wastes a lot of material? As in, horizontally we get 40/60cm and the smallest width available is 100cm.

(Please excuse my drawing, I drew it roughly I realise I shouldn’t have left any gaps and the shapes should be the same size)

66D465BA-0E85-4C9C-AD50-4B4C127DA9AA.jpg.jpeg

The obvious ways to lay them out are 1*4 and 2*2. The 1*4 could be either length or width ways, so not many to check.
15*152
60*38
76*30
There are also odd arrangements
38*68
...
(edited 3 years ago)
Reply 4
Original post by mqb2766
The obvious ways to lay them out are 1*4 and 2*2. The 1*4 could be either length or width ways, so not many to check.
15*152
60*38
76*30
There are also odd arrangements
38*68
...


Oh I see, must admit I didn’t think of all the other combinations 🙃
But either way thank you 🙏

Quick Reply

Latest