Step by step video, text & image solution for The number of different seven digit number that can be written using only the three digits 1,2, and 3 with the condition that the digit 2 occurs twice in each number is by Maths experts to help you in doubts & scoring excellent marks in ...
1What is the total number of different 5-digit numbers that contain all of the digits 2,3, 4, 7 and 9 and in which none of the odd digits occur next to each other? A. 12 B. 10 C. 8 D. 6 E. 1 2What is the total number of different 5-digitnumbers that contain all of ...
Use the numbers 1, 2, 3, 4, 5, 6, 7, 8 to make two four−digit numbers without repeating digits. The largest possible product would be × . 相关知识点: 试题来源: 解析 8531;7642 To make the largest result, when the number of digits is fixed, you should make the digi...
结果1 题目 12. Find the number of 6-digit numbers using the digits 3,4,5,6,7,8 without repetition.How many of these numbers are(a)divisible by 5, (b) not divisible by 5. 相关知识点: 试题来源: 解析 720a) 120 ,b) 600 反馈 收藏 ...
This principle can be applied to more than two events as well, and it comes in handy when trying to determine the number of ways something can occur.Answer and Explanation: There are 9,000,000 different 7-digit phone numbers that can be made w...
Required number=(3C2×2!)×(5C4×4!)=720. | ShareSave Knowledge Check The number of six digit numbers that can be formed by using the digits 1,2,1,2,0,2 is A50 B60 C110 D10 The number of 4 digit numbers that can be formed with the digits 2,3,4,7 and using each digit only...
To solve the problem of how many different six-digit numbers can be formed from the digits 4, 5, 6, 7, 8, and 9 without repetition of digits, we can follow these steps:1. Identify the Digits: The available digits are 4, 5, 6, 7
3/Using the numbers 3, 5, and 7, you can form different three-digit numbers. (Digits can be repeated) 相关知识点: 试题来源: 解析 本题考查了乘法原理:做一件事,完成它需要分成n个步骤,做第一步有m1种不同的方法,做第二步有m2种不同的方法,…,做第n步有mn种不同的方法,那么完成这件事共...
Find the number of different 5-digit numbers that can be formed if(i) there are no restrictions,[1]2520(ii) the number is divisible by 5,1360(iii) the number is greater than 60 000,[1]1080(iv) the number is greater than 60000 and even.3]6 or 8 to start with No of ways =2...
In finding the number of digits when multiplying, one must count how many digits there are in the numbers that are being multiplied. Then, one must... Learn more about this topic: Using Mental Math for Multiplication from Chapter 7/ Lesson 3 ...