Question

In a two digit number the units place digit is x if the sum of digits be 9 then the number is (10 x- 9)​ true or false​

Answer 1

Answer:

false

for example if we take x as 4 and next number as 5

then the sum of these numbers is 9

let 10 x-9

10× 4 -9

40-9

= 31