Question

the reason for greater cost of trousers over the
yarn

Answer 1

Explanation:

In the United Kingdom, the word pants generally means underwear and not trousers.[1] Shorts are similar to trousers, but with legs that come down only to around the area of the knee, higher or lower depending on the style of the garment. To distinguish them from shorts, trousers may be called "long trousers" in certain contexts such as school uniform, where tailored shorts may be called "short trousers" in the UK.