There are 3 groups of 11 travellers each or 11 groups of 3 travellers each.
Since we have 33 travellers and we need to divide them into equal sized groups, we need to find the factors of 33.
So, 33 = 1 × 33 = 3 × 11
So, the two factors of 33 we require are 3 and 11.
Since 11 × 3 = 3 × 11,
So, 3 × 11 implies that we can have 3 groups of 11 travellers each and,
11 × 3 implies that we can have 11 groups of 3 travellers each.
So, there are 3 groups of 11 travellers each or 11 groups of 3 travellers each.
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