Yoghurts are packed in trays - OCR - GCSE Maths - Question 8 - 2020 - Paper 1

To find the smallest number of trays needed for 460 yoghurts, divide the total number of yoghurts by the number of yoghurts per tray:

$$ext{Number of trays} = \lceil \frac{460}{12} \rceil$$

Calculating:

$$\frac{460}{12} = 38.3333...$$

Since we cannot have a fraction of a tray, we round up to the next whole number, which gives us 39 trays.