2 A 4-digit number is formed by using four of the seven digits 2. 3. 4, 5. 6. 7 and 8. No digit can be used more than once in any one number. Find how many different 4-digit numbers can be formed if(i) there are no restrictions,(ii) the number is even. 相关知识点: ...
A four digit numbers is formed with the digits from 1, 2, 3, 4, 5 without repetition. The probability that it is divisible by 3, is View Solution A four digit number is formed by the digits 1, 2, 3, 4 with no repetition. The probability that the number is odd is View Solution ...
A four-digit integer is formed out of 0, 1, 2 and 3 (the same number could be used by more than once) where the sum of all the digits is 3. How many integers in total meet the requirement? 显示答案 登录后才可以添加做题笔记哦,还没有账号? 马上注册 KMF 解析 网友解析 题目数据 收...
1【题目】Form a four-digit number using non-zero even numbers. T his four-digit number happens to be the perfectsquare of another number that is formed by even numbers. T his four-digit number is ().由非零的偶数码组成一个四位数,它又恰是某个由偶数码组成的数的完全平方数,这个四位数是...
If a four digit number is formed by repeating a two digit number two times (e.g. 2525), then that number will be divisible by : A1001 B101 C10001 D10101Submit A four digit number is formed repeating two digits two times. Like 2525, 3232 etc. such type of number always divisible by...
A four-digit number (abcd) where none of the digits are zero (The numbers can be repeated).If (ab)<20,(bc)<21,(cd)<22,we call this four digit number a“good number”.How many good numbers are there in total?一个各位数字都不是0的四位数(abcd)(数字可重复),如果满足(ab)<20,(bc...
A four figure number is formed of the figures 1, 2, 3, 4, 5 with no repetitions. The probability that the number is divisible by 5 is 3//4 b. 1//4 c. 1//8
How many different four-digit numbers can be formed by rearranging the four digits in 2004?A.4 B.6 C.16 D.24 E.81 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 B 解析看不懂?免费查看同类题视频解析查看解答 相似问题 ...
Its digit of tens is two times greater than its digit of ones, its digit of hundreds is two times greater than its digit of tens. How many A numbers with this property are there?A) 1 B) 9 C) 18 相关知识点: 试题来源: 解析 【解析】 C 结果一 题目 A is a four-digit number. ...
How many different four-digit numbers can be formed by rearranging the four digits in 2004?A.4 B.6 C.16 D.24 E.81 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 B 解析看不懂?免费查看同类题视频解析查看解答 相似问题 How many 3-digit numbers have exactly one digit...