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15£®Questions 11 through 13 are based on the following passage£®11£®A.37 years£® B£®Less than 5 years£® C£®About six years£® D£®Since he began to work£®
12£®A£®Many people£® B£®Nobody£® C£®About 37 people£® D£®Very few people£®
13£®A£®A quarter£® B.37 percent£® C£®One half£® D£®One-fifth£®
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