§ Dr. McDonaldasked the Chancellor of the Exchequer what is the cost to the Exchequer at the 1986–87 tax rates announced in the Budget of the married man's tax allowance in excess of the corresponding single persons' allowance; how much of this cost is attributable to taxpayers aged below 65 years; and what is the weekly value of this extra relief to the married man paying income tax at the standard rate.