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Find the two digit number when interchanged the difference is 27 and sum of two digits are 9 Video Lecture - Class 8
FAQs on Find the two digit number when interchanged the difference is 27 and sum of two digits are 9 Video Lecture - Class 8
| 1. What is the difference between a two-digit number and its reverse? |  |
Ans. The difference between a two-digit number and its reverse is obtained by subtracting the smaller number from the larger number. For example, if the two-digit number is 35, its reverse would be 53. The difference between them would be 53 - 35 = 18.
| 2. What are the possible two-digit numbers in which the difference between the number and its reverse is 27? | |
Ans. To find the possible two-digit numbers in which the difference between the number and its reverse is 27, we need to consider numbers where the digit in the tens place is greater than the digit in the units place. The possible numbers are 72, 83, and 94.
| 3. How can we determine the sum of the digits of a two-digit number? | |
Ans. To determine the sum of the digits of a two-digit number, we add the digit in the tens place to the digit in the units place. For example, if the two-digit number is 47, the sum of its digits would be 4 + 7 = 11.
| 4. Are there any two-digit numbers where the sum of the digits is 9? | |
Ans. Yes, there are two-digit numbers where the sum of the digits is 9. Some examples include 18, 27, 36, 45, 54, 63, 72, 81, and 90.
| 5. How can we find the two-digit number that satisfies both conditions: the difference between the number and its reverse is 27, and the sum of the digits is 9? | |
Ans. To find the two-digit number that satisfies both conditions, we can list all the two-digit numbers where the sum of the digits is 9 and check which of them have a difference of 27 between the number and its reverse. By doing this, we find that the number is 72.
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