百度试题 结果1 题目有多少个三位数的每位数字均是3的倍数? How many three-digit numbers are there in which every digit is a multiple of 3?相关知识点: 试题来源: 解析 48. 反馈 收藏
How many three-digit numbers are there in which any two adjacent digits differ by 3? A. 12 B. 14 C. 16 D. 18 E. 20 相关知识点: 试题来源: 解析 E The first digit can be anything from 1 to 9. Where possible, we can reduce this by three or increase it by three to get the ...
aDongying aijian science and Trade Co Ltd Dongying aijian科学和贸易Co有限公司[translate] aTurn step 转动步[translate] aHow many 3-digit numbers are there in which the number of even digits is even? 多少个3数字数字有没有在哪些均匀数字的数量是均匀的?[translate]...
百度试题 结果1 题目How many three-digit whole numbers are there such that the digit sum is ? A. 2 B. 4 C. 6 D. 8 E. 10 相关知识点: 试题来源: 解析 E, , , , , , , , , 总共有10个 反馈 收藏
How many three-digit numbers are there that have the sum of their digits equal to 7?. 相关知识点: 试题来源: 解析 28.. First of all, we can list out the ways to rewrite 7 as the sum of three numbers: 7=0+0+7=0+1+6=0+2+5=0+3+4 =1+1+5=1+2+4=1+3+3=2+2+3 ...
各个数字之和为5,百位是1的三位数有104、113、122、131、140;百位是3的三位数有203、212、221、230;百位是3的三位数有302、311、320;百位是4的三位数有401、410;百位是5的三位数是500.一共有5+4+3+2+1=15个三位数.结果一 题目 【题目】How many 3-digi tnumbers are there so that t he sum of...
How many three-digit numbers are there with no repeating digits? 答案 648.三位数的百位除0外有9种选择,十位可以选0,但不能与百位重复,所以有9种选择,个位不能与百位个十位重复,所以有8种选择,一共可以组成9×9×8=648个没有重复数字的三位数.相关推荐 1没有重复数字的三位数有多少个?How many ...
How many three-digit numbers are there that have the sum of their digits equal to 7? 答案 28.First of all, we can list out the ways to rewrite 7 as the sum of three numbers: 7=0+0+7=0+1+6=0+2+5=0+3+4 =1+1+5=1+2+4=1+3+3=2+2+3Different three-digit numbers can ...
结果1 题目 17. How many three-digit numbers are there such thatthe product of their digits is a prime number?(Remember 1 is not a prime number.) B(A)15(B)12C)17D)20(E)21 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...
结果一 题目 How many 3-digit numbers are divisible by 答案 意思大概是,有多少个能被7整除的3位数,共128个,做法是,最小能被7整除的三位数是105,最大994,从105到994共890个数字,除以7等于127余点东西,所以是128个 相关推荐 1 How many 3-digit numbers are divisible by ...