600 pounds sterling in 2-pound coins would weigh 300 pounds.

The Pound (£) Sterling.

The pound is the basic unit of money in Great Britain and Northern Ireland; equal to 100 pence (p).

The Royal Mint produce the coins 1p, 2p, 5p, 10p, 20p, 50p, £1, £2.

The Bank of England produce the banknotes £5, £10, £20, £50.

A British Two Pound coin weighs 12 grams.

There are 10 x Two Pound coins in Twenty Pounds.

10 x 12 = 120.

Twenty Pounds worth of Two Pound coins weighs 120 grams.

The pound symbol is £. Some currency conversions will sometimes refer to the currency as GBP (Great British Pound) or BPS (British Pound Sterling) or just Sterling. The pound symbol £ is based on the letter L from the Latin Libra and it is called a pound because originally the coins would have weighed one pound.

The pound sterling (GBP) (£) is the official currency of England and Wales and is the commonly accepted currency of Scotland and Northern Ireland. The pound sterling is contolled by the UK central bank, the Bank of England and is issued in banknotes by eight issuing banks in the United Kingdom and lower denominations in coins by the Royal Mint.