Generally, it is even to put apples and other fruits in a fruit bowl. In China culture, even numbers are more auspicious, so when placing fruits, the number of fruits is often even.
From the layout format, it is generally placed in a quantitative relationship of three or multiples of three. For example, there are at least three fruits in a plate, or six, nine and so on. Never put one or two at will. Solemnly declare: the answer is for reference only, please don't be blind _ superstitious.