Question

a number consists of two digits whose sum is 8 if 18 is added to the number its digit are reversed find the number​

Answer 1

Answer:

35 is the number

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Answer 2

Answer:

Let the number at units place be y and that of tens place be x.

Therefore, the original number :

10 x+y.

from first condition,

x+y=8.............. (1)

From second condition,

10x+y+18=10y+x

10y-y+x-10x=18

9y-9x=18

y-x=2........... (2)

Adding➕ (1) &(2) we get,

y=5 and x=3

Therefore the original number:

10x+y=10(3) +5=35

Therefore,

The original number is 35.