Fair price to pay for a birthday meal out?

Question

i'm looking to book a table for me and some friends, i know they won't mind paying whatever price but i feel a bit bad asking them to pay for a meal out AND a present...

so what would you say (in british pounds please!) is a fair price for college students to pay for a meal out?

thanks

Answer 1

$30 canadian... which is about *15* pounds?

*= correction

Answer 2

LESS THAN $40