- 10
- 12
- 14
- 18
- a
-
A:B=60:45
A:C=60:40
∴B/C=B/A×A/C=45/60×60/40
=45/40=90/80=90:80
∴BcangiveC10pointsinagameof90
A:B=60:45
A:C=60:40
∴B/C=B/A×A/C=45/60×60/40
=45/40=90/80=90:80
∴BcangiveC10pointsinagameof90