Math Help - Ratio

I've got a maths exam next week and i need to know how to work this question out for my revision so please could u show me:

(a) In a set of dolls, the height of the middle doll is 9 cm.
What are the heights of the other dolls?

........... cm 9 cm .............. cm
Smallest Middle Tallest

(b) In another set of dolls, the height of the tallest doll is 9 cm.
What are the heights of the other dolls?
Show your working and give your answer to one decimal place.


............ cm ................ cm 9 cm
smallest middle tallest

Please could you show your working for all the questions so i understand it.

Originally Posted by molly

I've got a maths exam next week and i need to know how to work this question out for my revision so please could u show me:

(a) In a set of dolls, the height of the middle doll is 9 cm.
What are the heights of the other dolls?

........... cm 9 cm .............. cm
Smallest Middle Tallest

(b) In another set of dolls, the height of the tallest doll is 9 cm.
What are the heights of the other dolls?
Show your working and give your answer to one decimal place.


............ cm ................ cm 9 cm
smallest middle tallest

Please could you show your working for all the questions so i understand it.

Unless you actually include the ratio your questions cannot be answered.