11. 726-!-item-!-187;#058&000339
What is the value of the positive integer m ?
(1) When m is divided by 6, the remainder is 3.
(2) When 15 is divided by m, the remainder is 6.
答案B
解答寫 (2) 15=m+6, m = 9,充分
可是我以為(2)表示 15= m x k + 6, 不知道 k
所以(2)不充分
為什麼解答這樣寫呢? 請大家教我嚕 感謝~~~
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 174.1.45.169