oh.. i forgot to tell u all..
i was wondering.. wat if the cambridge set wrong questions n we didnt noe? haha.. i tot this year like a lot of qtns v out of the blue lor.. like we nv see before de lei.. v irritating.. was wondering wif the qtn itself got mistakes.. jus like de PSLE de.. u guyes remem de triangel qtn.. here is more info on it.. look under de geometrical illusion..
http://www.grand-illusions.com/index.htm