DS1-17 题

chloeyeah21

17.    1329-!-item-!-187;#058&000662
Six countries in a certain region sent a total of 75 representatives to an international congress, and no two countries sent the same number of representatives.  Of the six countries, if Country A sent the second greatest number of representatives, did Country A send at least 10 representatives?

(1)  One of the six countries sent 41 representatives to the congress.

(2)  Country A sent fewer than 12 representatives to the congress.
1)當有一個地區是41, 表示剩下的5個區域=75-41=34
故41的那個區域就會是greatest
當A=9時,這34可以分配給剩下的區域 EX: (9,8,7,6,4) 符合題目要求 但A小於10
當A=11時,則可分配成(11,8,7,6,2) 符合題目要求 但A至少等於10
所以(1)不充分

不明白为什么A-11了，其实也就是at least 10了呀，怎么解释还说不充分？
不明白为什么

sdcar2010

EEEEEEEEEEEEEEE

None of the conditions, individually or combined, are sufficient.

chloeyeah21

but in that case, (2) will be correct coz either 9 or 11 is less than 12, isn't it? If (2) is OK, the anwser should be B...

sdcar2010

Because A can still equal 9!!! A is not guaranted to be at least 10.