In 1970, if 5 percent of the water use was for domestic purposes, approximately what was the daily average number of gallons of water used per capita for domestic purposes?
A.105
B.50
C.20
D.10
E.5
答案：A
If in 1900 the water use in Country K was the same as that in Country X, but increased at the constant rate of 3 billion gallons every year, then the two countries would again have had the same water use in approximately what year?
A.1910
B.1920
C.1930
D.1940
E.1950
答案：E
上一篇： GRE数学几何常27个考题练习
下一篇： GRE数学例题：数据解释题型（6）