Question

The digit in the ones place of a number
is twice the digit in its tens place. If 9 is
added to the number, the digits of the
sum obtained are reverse of those of the
number. Find the number.
e​

Answer 1

Answer:

thus the number is : 12

Step-by-step explanation:

let the digit at 10's place =x

then at 1's place=2x

So no= x*10+2x=12x

If 9 is added then digits get reversed

So 12x+9=10*2x+x

12x+9=21x

9x=9

x=1

thus the number is : 12

Answer 2

Answer:

number is 12

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