Question

the digits of a two digit number differ by 3. if the digits are interchanged and the resulting number is added to the original number, we get 121. find the orignal number​

Answer 1

Answer:

I don't know

sry...........................

Answer 2

Step-by-step explanation:

let digit at tens place is x

digit at first place = x+3

number = 10x+x+3=11x+3

if number is interchanged it becomes 10x+30+x

=11x+30

sum of both=121=22x+33

22x=88

x=88/22

x=4

hence original number=11*3+3=33+3=36

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