请教这道题怎么推算的，答案据说是C

bernadotte

Q12:

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.

angelise

要求的数是P-s-pt%
条件1和2一起才能算出P-s-pt%=244-7552%。

bernadotte

ls的朋友，我豁然开朗了，太马马虎虎了我
求的是 p-pt-s

angelise

细心点就好。加油。