Question 984911
Hi dear,
If the lenght is 90cm,
and the ratio of lenght to width to height is 8:5:7
Then,
sum ratio =20
Therefore,
  The width =(90/20)*5
       =22.5cm
 Also,
Height =(90/20)*7
    =31.5cm
The difference between the height and width =(31.5-22.5)cm
         =9cm
convert the above in metre
   98cm=(9/100)m
       =0.09m
HOPE THIS HELPS;
Best regards,
TIMNEWMAN::