04/26/2009 05:12 am ET Updated Nov 17, 2011

Will Your Marriage Last? Take The Test!

They say there's no simple formula for a long-lasting marriage. But it turns out they were wrong.

Scientists claim to have come up with a mathematical model which determines whether newlyweds are heading for a lifetime of happiness -- or spiralling towards divorce.

They say the technique is 94 per cent accurate and can spot the difference long before any cracks have appeared in a relationship. It works by dividing couples into five types -- with only two guaranteeing a stable marriage.