索尼和三星在韩国市场的销售额占韩国市场百分比大约是多少？

无韩国市场总额，无法判断查看更多

索尼在香港的销售额占索尼和三星的销售总额（以美元计）的百分比大约是多少？

40*35%/60=0.233查看更多

what approximately would be the population of Japan in 2030 if it were to decline by 10% in each decade?

130*0.9^3=94.77查看更多

what approximately would be the population of Bangladesh in 2030 if it were to rise by 10% in each decade?

140*1.1^3=186.34查看更多

what approximately would be the population of India in 2030 if it were to rise by 10% in each decade?

1065*1.1^3=1417.52查看更多

in percentage terms, the annual average price of oil decreased more than that of gold between year 4 and 5.

由表中可以看出，石油是一条陡峭的斜线，而金价下降缓慢，所以石油下降得快，此题错误查看更多

the predicted population rise is proportionally greater for India than for China.

1644/1065>1396/1285查看更多

the predicted population rise is proportionally greater for Brazil than for Indonesia.

225/170<316/215查看更多

(logical)

最外层图形为菱形、圆形、三角形；最内层图形为菱形、圆形查看更多

(logical)

图 1/2/3、为一组，图 4/5、答案为一组，两组变化规律一样,12 中间图形变为最外面图形查看更多