Pub arithmetic

Madam, - One pint of Guinness: €3.85. Two half-pints of Guinness: €4.20. A 9 per cent surcharge. For what?

Could we seek an EU harmonisation directive demanding that the price of 284 ml of Guinness is half that of 568 ml? - Yours, etc.,

DENIS GILL,

Dun Laoghaire,

Co Dublin.