Nick Hewer is left screwing his face up in amazement and horror as the duo struggle to use a calculator and bumble their way through a deal with a potential client.
Holzherr and Nash try to bluff their way through the pitch ("I can do it if I round the numbers"), but they fail to make a good impression on a restaurateur, who gives the duo a strong warning.
This week's task from Lord Sugar features the two teams representing a premium daily deals website, which means striking good deals and pushing the candidates' negotiation skills to the limit.
The Apprentice airs on Wednesday night at 9pm on BBC One.
