I held a number 75 in my mind. Write any condition showing the relation between the digits. Write the condition showing relation between the number and the number obtained by interchanging the digits
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GIVEN
I held a number 75 in my mind.
TO DETERMINE
- Write any condition showing the relation between the digits.
- Write the condition showing relation between the number and the number obtained by interchanging the digits
EVALUATION
Let
Unit digit of the required number = x
Ten's place = y
So the number is = 10y + x
1. Difference between ten place and unit place is 2
So by the given condition
y - x = 2 - - - - (1)
Which is the required condition
2. Now the number obtained by interchanging the digits = 10x + y
So by the given condition
( 10y + x ) - ( 10x + y ) = 18 - - - (2)
Which is the required condition
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