my yr 9 son's homework question has me flummoxed

This is embarrassing for me :eek:

see question 9 in image attached its the bread question. For the life of me I cant get a solution. I ended up with a 1:1 ratio but to be honest its a guess. I must be missing some easy idea thats staring at me......... :redface:

Reply 1

L'Evil Fish

18

For the third one

1:2?

:lol:

I'm actually unsure...

Small is 2x smaller than middle

?

(edited 9 years ago)

I'm not sure so don't take my word for it, but I would guess at:

A) 3:1
B) 2:3
C) 1:2

Posted from TSR Mobile

Reply 3

silverpuma

OP

1

Well in away I encouraged that its not something easy I missed. :biggrin:

Reply 4

L'Evil Fish

18

Original post by Edminzodo

I'm not sure so don't take my word for it, but I would guess at:

A) 3:1
B) 2:3
C) 1:2

Posted from TSR Mobile

Original post by silverpuma

Well in away I encouraged that its not something easy I missed. :biggrin:

I agree with those answers ^^

Reply 5

ThatPerson

18

Original post by L'Evil Fish

For the third one

1:2?

:lol:

I'm actually unsure...

Small is 2x smaller than middle

?

Correct me if I'm being dense here, but you can't get a numeric answer for the ratios, since you don't know the sizes of the loaves, right?

I just assumed they wanted something along the lines of: ie for the first one:

\dfrac {large}{small}:1

, etc

Reply 6

L'Evil Fish

18

Original post by ThatPerson

Correct me if I'm being dense here, but you can't get a numeric answer for the ratios, since you don't know the sizes of the loaves, right?

I just assumed they wanted something along the lines of: ie for the first one:

\dfrac {large}{small}:1

, etc

I just thought it was

1:2:3

Stumped by a year 9 q :emo:

Reply 7

ΘTheta

10

Original post by ThatPerson

Correct me if I'm being dense here, but you can't get a numeric answer for the ratios, since you don't know the sizes of the loaves, right?

I just assumed they wanted something along the lines of: ie for the first one:

\dfrac {large}{small}:1

, etc

I suppose you can measure the volume of the breads, since they are all printed to the same scale, by base x height x width=v

Reply 8

ThatPerson

18

Original post by ΘTheta

I suppose you can measure the volume of the breads, since they are all printed to the same scale, by base x height x width=v

That won't work because they're not cuboids. I doubt they'd want you to approximate the volume by hand for a year 9 question.

Reply 9

brownsugar-xx

8

Original post by Edminzodo

I'm not sure so don't take my word for it, but I would guess at:

A) 3:1
B) 2:3
C) 1:2

Posted from TSR Mobile

that would be my guess, too :dontknow:

Reply 10

KongShou

10

Pretty sure this question is incomplete

D is the answer

Original post by ThatPerson

That won't work because they're not cuboids. I doubt they'd want you to approximate the volume by hand for a year 9 question.

Well I mean, it could just be an estimate. I would have suspected that by year 9, just before starting GCSE, they would have learned about ratios and volumes.