1.

the sum of the two digit numbet is 15. if the number formed by reversing the digit is less than the orignial number by 27 . find the original answer. check your solution?

Answer»

Let the digit in unit PLACE be x.
and the digit in TENS place be y.
Number=10y+x
given that,
x+y=15.............1.

and 10x+y+27=10y+x
9x-9y=-27
x-y=-3.................2.

from 1 and 2

2x=12
x=6

putting x=6 in eq 1.
6+y=15
y=15-6
9

then the original number =96


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