(1) Subject to this Chapter, the rate (in this Chapter referred to as "the scheduled rate") of farm assist shall be the weekly rate set out in column (2) at reference 11 in Part 1 of Schedule 4, increased by -
(a) the amount set out in column (3) of that Part opposite that reference for any period during which the claimant or beneficiary has a qualified adult, subject to the restriction that, except where regulations otherwise provide, the claimant or beneficiary shall not be entitled for the same period to an increase of the allowance under this subparagraph in respect of more than one person, and
(b) the appropriate amount set out -
(i) in column (4) of that Part opposite that reference in respect of each qualified child who has not attained the age of 12 years who normally resides with the claimant or beneficiary, and
(ii) in column (5) of that Part opposite that reference in respect of each qualified child who has attained the age of 12 years who normally resides with the claimant
…