數20!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The answer is 86

2007-09-12 21:05:14 補充：
This is because "When a number is divided by 6 ,the remainder is 2."ie add 4 to the number will be divisible by 6

2007-09-12 21:05:29 補充：
"When it is divided by 9 the remainder is 5"ie add 4 to the number will be divisible by 9"the remainder is 11 when divided by 15"ie add 4 to the number will be divisible by 15

2007-09-12 21:05:50 補充：
Thus (answer) add 4 will be divisible by, 6, 9, 15 at the same timeLCM of 6, 9, 15 = 90Thus answer = 90 - 4 = 86

When a number is divided by "???" ,the remainder is 2.When it isdivided by 9,the remainder is 5 and the remainder is 11 when divided by 15.What is the least value of this number?

Please let me know "???" first