Respuesta :

Ratio = 3:5
Total ratio is 8
8 shares represent ------> £ 40
Find for one share
1 share ------> £40/8 = £5
Now find 3 and 5 shares
Bart : 3 shares ------> £ 5×3 = £15
Lisa : 5 shares ------> £ 5×5 = £25

ratio = 3:5 ( i think )......................