Mrs Harris, the owner of three rented houses in Extown, asks her next-door neighbour, Ted, to collect rent from the tenants for her while she is abroad on business. Ted collects the rents and when Mrs...

Mrs Harris, the owner of three rented houses in Extown, asks her next-door neighbour, Ted, to collect rent from the tenants for her while she is abroad on business. Ted collects the rents and when Mrs Harris returns she says to him, ‘I’ll give you £50 for your work.’

Can Ted enforce the promise?