Question

In a two digit number the digit in the unit's place is twice the digit in the ten's place and the number ontained by interchanging the digits is more than the original number by 27. What is 50% of the orignal number

Answer 1

Answer:

Step-by-step explanation:

Let the number be 10x + y.

As the unit digit is twice the tens digit, first equation will be

y = 2x --- (1)

Then, second equation will be

10y + x = 10x + y + 27 --- (2)

By solving both equations we get x = 3 and y = 6..