What was Jean's insurance premium in 1995 ?
(1) The ratio of Jean's insurance premium in 1995 to her insurance premium in 1994 was ~$\frac{6}{5}$~ .
(2) Jean's insurance premium in 1995 was 20 percent more than her insurance premium in 1994.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
A is 20% more than B表示: A 比B多20%。即A = 20%B + 100%的B。 千万不要以为是百分之20的A