(1) Where the restricted activity is to effect a merger, each declaration (that is to say, each declaration by the directors (or a majority of them) of each merging company) shall state -

(a) the total amount of the assets and liabilities of the merging company in question as at the latest practicable date before the date of making of the declaration and in any event at a date not more than 3 months before the date of that making; and

(b) that the declarants have made a full inquiry into the affairs of the company and the other merging companies and that, having done so, they have formed the opinion that the successor company (within the meaning of Chapter 3 of Part 9) will be able to pay or discharge the debts and other liabilities of it and the transferor company or companies in full as they fall due during the period of 12 months after the date on which the merger takes effect.