Question

The sum of two digits of a 2 digit number is 7 When the digits are reversed the number increases by 27 .Find the original number

Answer 1

Answer:

25

Step-by-step explanation:

let the original number is 10x+y

acc to the question x+y=7...(a)

10y+x=27+10x+y

9y=9x=27

y-x=3.........(b)

a+b

y=5 sub in (a)

x=2

original number is 10x+y

10(2)+5=25

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