Question

in a 2 digit number, digit in units place is twice the digit in ten place. if 27 is added two it digit are reversed.find the number ​

Answer 1

Answer:

let the number be 10x+y

when reversed it become 10y+x

since y=2x

the number is 10x+2x=12x

when reversed=20x+x=21x

by given condition,

27+12x=21x

27=9x

x=27/9

x=3

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