Tesco (TSCO) is poised to reveal a double-digit rise in profits this week thanks to strong summer sales and its takeover of cash-and-carry chain Booker. Analysts are expecting operating profit to climb 13% to £1bn for the half year, as the royal wedding, World Cup and summer heatwave bolstered sales. Tesco will also be handed a further boost from Booker. The performance of Britain’s biggest food and drink wholesaler will be included in the grocer’s half-year results for the first time since the £3.7bn deal earlier this year.