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Find all two digit numbers that when you reverse their digits then add that to the original number you get 55?
Wiki User
∙ 14y ago
The original number, written as " T U ", has the value (10T + U). When you reverse the digits, the new number has the value (10U + T). Adding the two numbers: (10T + U) + (10U + T) = 55 11T + 11U = 11(T + U) = 55 T + U = 5 All possible two-digit numbers that satisfy (T + U = 5) are: 1423 32 41
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∙ 14y ago
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I am a three digit number. The sum of my digits is 18. When I reverse my digits and subtract the new number from the original number you get 99. What number I am?
whats the answer please??
If 27 is added to a twi digit number the result is a number with the same digits but in reverse order The sum of the digits is 11 What is the original number?
38
What does it mean to reverse the digits in a number?
Instead of reading the numbers from left to right (1234) read them from right to left (4321).
What are the first three emirp numbers?
An emirp number is a prime number which, when you reverse the digits, produces a different prime number. Therefore, there are no single-digit emirp numbers. The first three emirp numbers are: 13, 17, 31
What is the total number of digits in the numbers from 1 to 1000000?
In the numbers 1-9 each number has 1 digit and there are 9 of them, so that's 9.In 10-99 each number has 2 digits, and there are 90 of them: 2x90 = 180There are 900 three digit numbers [100 through 999]: 2700 digits.There are 9000 four digit numbers: 36000 digits.90,000 numbers with five digits: 450,000 digits.900,000 numbers with six digits: 5,400,000 digits.Then 1 number with seven digits: 7 digits.Add them up and you have 5,888,896 digits.
I am a three digit number. The sum of my digits is 18. When I reverse my digits and subtract the new number from the original number you get 99. What number I am?
whats the answer please??
If 27 is added to a twi digit number the result is a number with the same digits but in reverse order The sum of the digits is 11 What is the original number?
38
10.) A two-digit number is prime. When you reverse the digits, that number is also prime. What could the number be List three possibilities.?
Some numbers that you can get when you reverse the digits and they are still prime numbers are: 403 ÷ 13 = 31 2,701 ÷ 37 = 73 1,207 ÷ 17 = 71
How do you know that a numeric is palindrome or not using c or pascal language?
Reverse the digits then check of the new number is the same as the original number.
The sum of the digits in a two digit number is 17 If the digits are reversed the new number will be 9 less than the original number What is the original number?
Possibility of two digit no whose sum is 17 89 and 98 Reverse of 89 is 98. 98 is 9 less than the original no 89. 89 is original no
If the sum of the digits in a two digit number is 10 and when the digits are reversed the new number is 54 more than the original number what is the original number?
Possibility of two digit no whose sum is 10 19,28,37,46,55,64,73,82,91 Now add 54 to each no mentioned above 73,82,91,100,109,118,127,136,145 See after 1st comma 28 and 82 Reverse of 28 is 82. That no 82 is 54 more than the no 28. So 28 is the original
What does it mean to reverse the digits in a number?
Instead of reading the numbers from left to right (1234) read them from right to left (4321).
What is a four digit number that you can multiply by 4 and get a number with the original digits in reverse order?
2178 x 4 = 8712
What are the first three emirp numbers?
An emirp number is a prime number which, when you reverse the digits, produces a different prime number. Therefore, there are no single-digit emirp numbers. The first three emirp numbers are: 13, 17, 31
How may digits are there in a number?
Digits is how many numbers you have in a number. If you have the number 4 it has one digit if you have the number 20 it has two digits and if you have the number 558 it has three digits. So basically in the number 1085 it has 4 digits because there is 4 numbers in it, the numbers are 1,0,8 and 5. Hoped you understand.
Could you please tell me the Palindrome number checking code?
The most efficient method is to reverse the digits in the number and then check if the reversed number is equal to the original number. In C, we can implement this as follows (using long-hand notation for clarity). Note the use of base (defaulting to base 10) so that we can check values in other bases. bool is_palindrome (unsigned num, unsigned base = 10) { // local variables unsigned rev, digit, digits; // copy the input number digits = num; // initialise the accumulator rev = 0; // repeat while there are digits while (digits) { // extract the low-order digit using modulo (%) operator digit = digit % base; // shift the accumulated digits (if any) one position to the left rev = rev * base; // add on the new digit rev = rev + digit; // shift the remaining digits one position to the right digits = digits / base; } // end while // return true if the number and its reverse are equal return num == rev; }
What is the code for Armstrong numbers?
Armstrong numbers are the sum of their own digits to the power of the number of digits.
