Q24:

From Leland’s gross pay of p dollars last week, t percent was deducted for taxes and then s dollars was deducted for savings. What amount of Leland’s gross pay last week remained after these two deductions?

(1) p - s = 244

(2) pt = 7,552

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

Answer:

偶答E，请指点，谢谢

Assume N is the money left after the tax deduction and saving,

Then N+S+P*T%=P=>N=P-S-PT%

Therefore with the two info provied, we can get the result of N right away. The answer then should be C.