pp数学两则，求教~

laladu101

48.    6225-!-item-!-187;#058&004914
A certain city with a population of 132,000 is to be divided into 11 voting districts, and no district is to have a population that is more than 10 percent greater than the population of any other district.  What is the minimum possible population that the least populated district could have?

(A) 10,700
(B) 10,800
(C) 10,900
(D) 11,000
(E) 11,100

这题想考的是什么？从何处入手？


50.    4230-!-item-!-187;#058&003784
A construction company was paid a total of $500,000 for a construction project.  The company's only costs for the project were for labor and materials.  Was the company's profit for the project greater than $150,000 ?

(1)  The company's total cost was three times its cost for materials.

(2)  The company's profit was greater than its cost for labor.

已算到P=500000-1.5l 。不知道为什么答案是C


求教