PLZZZ ANSWER EASY QUESTION.open the photo
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it answer is 36.
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tanishq2618:
But plzz tell the steps explanation photo is also ok
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let,unit digit=x
tenth digit=9-x
no. obtain =10(9-x)+x
=90-9x
we interchange,
unit digit=9-x
tenth digit=x
no. obtain
10(×)+9-x
=9x+9
90-9x+27=9x+9
117-9x=9x+9
117-9=9x+9x
108=18x
x=108/18
=6
unit digit=6
tenth digit=9-6=3
The two digit no.=63
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