CBSE Class 10 Answered
find the number
Asked by geethika | 10 Feb, 2010, 05:12: AM
Expert Answer
Let the two digits of the number be x and y, and the number 10x+y.
x + y = 15 ..........(1)
10y + x = 10x + y + 9
9y - 9x = 9
y - x = 1 ................(2)
Solve (1) and (2),
y = 8 and x = 7
The number is 78.
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Team,
TopperLearning.
Answered by | 10 Feb, 2010, 05:21: AM
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