The four sentences (labelled 1, 2, 3, 4) given below, when properly sequenced, would yield a coherent paragraph. Decide on the proper sequencing of the order of the sentences and key in the sequence of the four numbers as your answer.
1. Instead of buying a drill that will be used for a few minutes a year, members borrow one for a weekend.
2. Such libraries also tend to become social hubs, where volunteers teach repair skills alongside the lending.
3. In recent years, a number of cities have opened 'libraries of things', which lend tools, kitchen equipment and other rarely used objects.
4. The idea rests on a simple observation: much of what households own sits idle most of the time.
Solution
Sentence 3 introduces the libraries of things. Sentence 4 ('The idea rests on…') gives the reasoning behind them, and sentence 1 illustrates it with the drill. Sentence 2 ('Such libraries also…') adds a further benefit, so it comes last: 3-4-1-2.