Question

Sum of digit of two digit number is 15 the number is decreased by 27 if the digit are reversed find the number

Answer 1

Answer:

Step-by-step explanation:

X+y=15

Now,xy=10x+y

yx=10y+x

A/Q,

10x+y=10y+x+27

9x=9y+27

9x-9y=27

X-y=3

X+y=15______eqn1

Add them

X+y+x-y=3+15

2x=18

X=9....

Put this in eqn 1..Then y=6

Hence,the no. Is 96