5 Here are the costs of the same type of batteries in two shops. Shop B
Shop A
Pack of 4 batteries
£1.60
Pack of 6 batteries
£2.70
Harry needs to buy at least 30 batteries.
He assumes that he has to buy batteries in whole packs.
Harry wants to buy the batteries as cheaply as possible from the same shop.
(a) Which shop should he buy the batteries from, shop A or shop B?
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