Question

Plzzz give the answer as fast sa possible​

Answer 1

Answer:

Given

Let 1st digit =x

and 2nd digit=> y=2x -----------------(1)

digit is: 10x+y ------(2)   considering place values

interchange digits:

y becomes 10 times,

y*10

10y+x   ------------- (3)

Sum of (2) and (3)  is 99  , Given

10y+x+10x+y=99

write y interms of x  (from 1 above)

10(2x) + x +10x + 2x = 99

20x+x+10x+2x=99

33x=99

x=99/33 = 3

So first digit is 3, 2nd digit y=2x = 2x3 = 6

Verify:

36+63=99

Step-by-step explanation: