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- The difference between a two-digit number and the number obtained by interchanging the two digits is 63.
Question 1:
The difference between a two-digit number and the number obtained by interchanging the two digits is 63. Which is the smaller of the two numbers ? A. 12
B. 15
C. 17
D. none of these answers can be determined
Feedback Let the ten's digit be x and unit's digit be y.
Then, (10x + y) - (10y + x) = 63
9 (x - y) = 63
x - y = 7.
Thus, none of the numbers can be deermined..
Then, (10x + y) - (10y + x) = 63
9 (x - y) = 63
x - y = 7.
Thus, none of the numbers can be deermined..
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