At a single completion meeting the sales from A to B and from B to C are completed; consideration of £900,000 is paid by C to B and consideration of £1m is paid by B to A.
Mewn un cyfarfod cwblhau, mae'r gwerthiant o A i B ac o B i C yn cael ei gwblhau; telir cydnabyddiaeth o £900,000 gan C i B a thelir cydnabyddiaeth o £1 miliwn gan B i A.