Currys PC World teams up with maths whizz Rachel Riley to solve Brits’ festive shopping conundrums   As more than a third of Brits cite lack of ideas the hardest part of Christmas shopping, Currys PC World teams up with maths whizz Rachel Riley to solve Brits’ festive shopping conundrums LONDON, 2016-Dec-09 — /EPR Retail News/ — COMMUTING,…