answersLogoWhite

0

Call the digits 'A' and 'B', so that the number is written: AB.

10A + B = 4 (A+B)

10A + B = 4A + 4B

6A = 3B

2A = B ---> any 2-digit number where the units digit is twice the tens digit

12 or 24 or 36 or 48

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

Which four digit number ends up with it's digits reversed when you times it by four?

2178 * 4 = 8712


How many four digit numbers can be made using the digits 0123567?

To form a four-digit number using the digits 0, 1, 2, 3, 5, 6, and 7, we must ensure that the first digit is not 0 (to avoid creating a three-digit number). This leaves us with 6 options for the first digit (1, 2, 3, 5, 6, 7). For the remaining three digits, we can use any of the 7 digits (including 0) and can repeat digits. Thus, the total number of four-digit numbers is calculated as follows: (6 \times 7 \times 7 \times 7 = 6 \times 343 = 2058). Therefore, there are 2058 possible four-digit numbers.


What is the greatest seven-digit number using four different digits?

9,999,876 is the greatest seven-digit number using four different digits.


What is the greatest four-digit even number with no repeated digits?

The greatest 4-digit number with no repeated digits is... 9876


Four times the sum of the digits of a two-digit number is equal to the number if the digits are reversed the resulting number is 27 greater than the original number what is the number?

The number is 36


What is the largest four digit number you can make if all the digits are different?

9876 is the largest four digit number you can make if all the digits must be different.


What is the four digit number whose digits are reversed when multiplied by nine?

Find a four digit number whose digits will be reversed when multiplied by nine?


What is the largest four digit odd number whose four digits are even?

There is no such number. If the four digits are even, the entire number is even, not odd.


In a four digit number the sum of the thousands and hundreds digits is 3 The tens digit is 4 times the hundreds digit The ones?

this question doesnt make sense


How many three digit or four digit even numbers can be formed from the set (23567)?

To form three-digit even numbers from the set {2, 3, 5, 6, 7}, we can use the digits 2 or 6 as the last digit (to ensure the number is even). For each case, we can choose the first two digits from the remaining four digits. For three-digit numbers, there are 2 options for the last digit and (4 \times 3 = 12) combinations for the first two digits, resulting in (2 \times 12 = 24) even numbers. For four-digit even numbers, we again have 2 options for the last digit. The first three digits can be selected from the remaining four digits, giving us (4 \times 3 \times 2 = 24) combinations for each last digit. Thus, there are (2 \times 24 = 48) even four-digit numbers. In total, there are (24 + 48 = 72) three-digit and four-digit even numbers that can be formed from the set.


Which is the largest 4 digits number using 4 at 4 times?

It looks like you're asking what is the largest 4-digit number which has four 4's for digits - with a four digit number using four 4's, there is only one such number: 4444. Maybe I'm not understanding the wording of your question.


How many four digits can be formed in 1 2 3 4 5 and 6 without repeating the numbers?

To form a four-digit number using the digits 1, 2, 3, 4, 5, and 6 without repeating any digits, you can choose the first digit in 6 ways, the second digit in 5 ways, the third digit in 4 ways, and the fourth digit in 3 ways. Therefore, the total number of four-digit combinations is calculated as (6 \times 5 \times 4 \times 3 = 360). Thus, 360 different four-digit numbers can be formed.