Forexample, if [4.8] =4There are []= 199 numbers between 1 and 999 that are multiples of 5. There are[]= 19 numbers between 1 and 99 that are multiples of 5. If we subtract 19 from199, we get 180 3 digit numbers that are multiples of 5.|A|= 180Another way of looking at ...
If we write out all the three-digit numbers with the sum of the figures on each digit equivalent to 10 ,and arrange them from great to small,then what is the tenth number in them? 相关知识点: 试题来源: 解析 写出所有满足三位数各数位数字之和为10的三位数 ,把他们从大到小排列 ,第十...
1.All possible 3-digit numbers formed from the digits 1,2,3,6,8,and 9 are written on slips of paper.Repetition of digits within a number is allowed.If one of these slips is drawn at random,what is the probability that it contains the number 262?When the first-drawn slip is replaced...
A three-digit number is 33 times the sum of its digits. Find all the digit numbers that satisfy the requirement.一个三位数是它各位数字之和的33倍,请求出所有满足要求的三位数. 相关知识点: 试题来源: 解析 112;232 解:设这个三位数为abc,那么这个三位数可以表示为100a+10b+c,根据题目,我们有10...
and all digits are different, how many different three-digit even numbers can be made? 相关知识点: 试题来源: 解析 12. For a three-digit number whose unit digit is 0: 710, 620, 530, 350, 260, 170. Unit digit is 2: 602, 512, 152. Unit digit is 4: 314, 134. Unit digit is 6...
解析 B There are six such numbers, 123, 132, 213, 231, 312, and 321.( Numbers like 223 don't use all three digits . ) 有多少个不同的3位数整数含有1、2、3三位数字( ). A.3 B.6 C.123 D.300 123,132,213,231,312,321,共有6个数字. 故选B....
Find the sum of all the three digit natural numbers which on division by 7 leaves remainder 3. View Solution Find how many three digit natural numbers are divisible by5. View Solution Find the sum of all two digit natural numbers which when divided by 3 yield 1 as remainder . ...
et the two three−digit numbers she added be a and b with a+b=S and a
If the product of all digits of a six-digitnumber is 1296,among such six-digitnumbers,the smallest is .所有的各位数字之积为1296的六位数中,最小的是 . 相关知识点: 试题来源: 解析 (1) 112899(2) 1128...
Unit digit is 2: 602, 512, 152; Unit digit is 4: 314, 134; Unit digit is 6: 206.结果一 题目 【题目】For a three-digit even number where the sum of alldigits is 8 and all digits are different, how many different three-digit even numbers are there? 答案 【解析】12相关推荐 1【...