Common questions

What is the sum of the digits of a two-digit number?

What is the sum of the digits of a two-digit number?

The sum of the digits of a two digit number is 8 and the difference between the number and that formed by reversing the digits is 18 . Find the number. The sum of the digits of a two digit number is 8 and the difference between the number and that formed by reversing the digits is 18.

How to find sum of its digits in Excel?

Given a number, find sum of its digits. Recommended: Please solve it on “ PRACTICE ” first, before moving on to the solution. Get the rightmost digit of the number with help of the remainder ‘\%’ operator by dividing it by 10 and add it to sum. Divide the number by 10 with help of ‘/’ operator to remove the rightmost digit.

What is the number formed when the digits are reversed?

Let x be the digit at unit’s place and y be the digit at ten’s place. Since y is at ten’s place, then the number formed is 10y+x. By reversing the digits, it becomes 10x+y.

How to sum and remove the rightmost digit of a number?

Get the rightmost digit of the number with help of the remainder ‘\%’ operator by dividing it by 10 and add it to sum. Divide the number by 10 with help of ‘/’ operator to remove the rightmost digit. Below are the solutions to get sum of the digits. 1. Iterative: // number. // number. // sum of digits in number.

A number of two digits has 3 for its unit’s digit, and the sum of digits is 17 of the number itself. The number is of the number itself. The number is Was this answer helpful?

What is 7 times the sum of two numbers?

If our number is, in decimal notation a 1 a 2 … a n 3, then 7 times the sum of the digits is at most 7 ( 9 n + 3) = 63 n + 21 Clearly, the answer for a 2 digit number is 63 as it is the only 2 digit number divisible by 7 that has 3 in its decimal form.

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Which two-digit number whose units digit is 3 and is divisible 7?

The giveaway is that something is one seventh of the number, i.e. the number is a multiple of 7. The only two-digit multiple of 7 ending in 3 is 63. The number is 63. The answer is given away in the question. The only two-digit number whose units digit is 3, and is divisible by 7 is 63.

What is the difference between 36 and 2 digits?

In a number of two digits, unit’s digit is twice the tens digit. If 36 be added to the number, the digits are reversed. The number is In a number of two digits, unit’s digit is twice the tens digit. If 36 be added to the number, the digits are reversed.

The sum of the digits of a two-digit number is 12. If the new number formed by reversing the digits is greater than the original number by 54, find the original number. Check your solution. Let the units digit of the two-digit number be y and the tens digit be x. Hence, the number will be 10x+y.

What is the sum of the digits if 18 is added?

You’re asking what is the sum of the digits is if 18 is added to the original number. If the new number is a 2 digit number, the sum is still 12, but if it spills into 3 digits, the sum changes (84+18=102; sum is 3).

How do you reverse a two digit number with 18 digits?

The simple way: Find all two digit candidates. We know that it can’t be 84 or 93, because adding 18 to one of those numbers would give us a three digit number as the result, not a two digit number with the digits reversed. So we’re down to: Try adding 18 to each of those numbers until you find the one that gets the digits reversed.

What is the value of 10Y+X when reversing the digits?

Given that the sum of digits is 12. It is also given that the new number formed by reversing the digits is greater than the original number by 54. On reversing the digits, x becomes the units digit and y becomes the tens digit. Hence, the new number will be 10y+x. The units digit is 3 and the tens digit is 9.

The sum of the digits of a two-digit number is 6. If the digits are interchanged the resulting number is 18 more than the original number. What is the original number?

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How do you find the two digit special two digit number?

Extract the first and last digit of the number and add and multiply the digits separately. Then, add the sum and product of the digits of the two-digit number and compare it to the original number. If they are same, then it is a Special Two-Digit Number, else it is not.

The sum of the digits of a two – digit number is 12. The number obtained by interchanging its digits exceeds the given number by 18. Find the number. The sum of the digits of a two-digit number is 12.

How do you find the sum of two numbers using equations?

There are two numbers so you need two equations. Solve for one variable ( number) and then substitute and solve for the other. Let x equal one number and y the other number. One equation would be the sum of the numbers. Questions which involve two or more numbers can be done using one variable to define them all. Let the smaller number be x.

What is the difference between the numbers x + 4 and 12?

The difference between the numbers is 4. The other number is x + 4 Their sum is 12 x + x + 4 = 12

SOLUTION: The sum of the digits of a two-digit number is 13. When the digits are reversed, the new number is 27 more than the original number. What is the original number? (The worksheet Question 480647: The sum of the digits of a two-digit number is 13. When the digits are reversed, the new number is 27 more than the original number.

What two consecutive digits add up to 13?

If you reverse the digits of any two digit number the difference from the original number will be a multiple of 9. However, only when the digits are consecutive is the difference exactly 9. We know, then, that it has to be consecutive digits that add up to 13. Therefore, the answer is 6 and 7. Cheers!

How do you subtract 9 from a number to get 32?

Starting from the lowest possible 2-digit number, your answer is 32. By subtracting nine from any number having at least two digits which are consecutive in descending order (eg. 187 to 178; 76 to 67, etc.) the tens and ones digits will reverse as long as hundreds digit is unaffected. I’ve used this like a mnemonic a few times.

Is the sum of 24 and 18 interchanged?

Yes! The number 24 is the two digit number whose sum is 6 ,if we add 18 to it, it leads 42 which is the interchanged digits of the original number (24). Then interchanging the digits of 24 leads to 42,which is not a original number (06).

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How do you find the value of a two digit number?

For example, the value of the number formed by the digit 4 in the ten’s place and the digit 3 in the one’s place is 4 × 10 + 3 × 1 The sum of the digits of a two-digit number is 11. If we interchange the digits then the new number formed is 45 less than the original. Find the original number.

How to convert an integer to a number?

If the problem involves interchanging of the digits in the integer then you would need to convert from the digits to numbers and vice versa. To convert the digits to numbers, we need to multiply with the digit with the place value of the digit.

Sum of the digits of a two-digit number is 11. The given number is less than the number obtained by interchanging the digits by 9. Find the number. Let x be the unit digit of the number. Hence, unit’s digit = 6 and ten’s digit = 11−6=5.

How do you find the tens digit of a number?

When the digits are reversed the new number is 9 less than three times the original. The sum of the digits of a 2-digit number is 10. The tens digit is 4 times the ones digit. Find the number. A 2-digit number is 10 times the sum of its digits. The tens digit is 2 greater than the units digit. Find the number.

So all the conditions given in the question are satisfied. The sum of the digits of a two-digit number is 9 and if the tens place digit is increased by 3, the number formed will be equal to 5/3 times the original number. What is the original number? This number is 5/3 times original number.

What is a number that is three times the sum of?

Originally Answered: A number is three times the sum of its digit. What is the number? By hypothesis, if we assume that it is a two digit number 10a+b, then 10a+b=3 (a+b), which gives 7a=2b. Also the number is divisible by 3 and so the sum a+b of its digits is also divisible by 3. Hence 10a+b=3 (a+b) is a multiple of 9.

What is a two digit positive number?

A two digit positive number is six times the sum of its digits and is also equal to 6 less than thrice the product of its digits. What’s the number? Fast. Simple.

What is 6*7 times the sum of its digits?

We know that the number is seven times the sum of its digits. The sum of the digits is 4+2 = 6. Then, 6*7 = 42. Hence, the condition is satisfied.