Example sentences of "perhaps a quarter " in BNC.

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1 Some economists calculate that only a small part ( perhaps a quarter ) of the appreciation of the exchange rate is attributable to oil but that the government deliberately pushed up the exchange rate ( which appreciated 40 per cent between 1979 and 1980 ) by raising domestic interest rates and thereby weakening industrial competitiveness .
2 Most trilobites were broadly oval-shaped being rather longer than wide , not greatly convex , and with eyes that occupy perhaps a quarter of the length of the head .
3 During the nineteenth century , as more people survived their last child leaving home , it became a particularly important form of support , with perhaps a quarter of working-class older people in some towns taking in boarders : a pattern which persisted until young people began to marry much earlier in the 1950s , setting up on their own instead — and leaving more of the old on their own .
4 A survey by Apted suggested that perhaps a quarter to a third of university libraries have selection policy statements of some kind .
5 The company says that it has received inquiries from about 470 companies , of which perhaps a quarter are potential customers .
6 After perhaps a quarter of an hour she would rise again and return to her books , as though satisfied that all was in its place .
7 This represents perhaps a quarter of the true figure .
8 At the peak of the breeding season there are said to be perhaps a quarter of a million sooty terns nesting on Aride , but now in October there were only a few hundred .
9 Since you had owned the farm , you would be allowed to keep a small plot , perhaps a quarter of an acre , to grow whatever you wished .
10 A female toad may lay 20,000 eggs each season ; perhaps a quarter of a million in her lifetime .
11 We also drew on survey evidence to show that temporary work provided an important source of new jobs for unemployed people , of whom perhaps a quarter took such work .
12 Even so , I hope that the House will forgive me if , after my speech , I am absent from the Chamber for perhaps a quarter of an hour while I go there to congratulate the winners of training awards .
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