Ticket prices for the London Olympics in 2012 have been announced. Of the 8.8 million tickets available, 75 per cent will be sold to the public from March next year.Ticket prices will range from $32 for standard events to more than $ 3,000 for the top price seats for the opening ceremony. And 1,25,000 tickets are being set aside to be given to schoolchildren who will have to achieve something to earn them.