Question

by 36. Find the number.
The sum of the digits of a two-digit number is 6. If 18 is subtracted from the number, the
digits of the number are interchanged. Find the number.
In five years from now. Shyam will be thrice as old as he was 9 years ago. Find his
present age.
9.​

Answer 1

Answer:

Answer : 42

Step-by-step explanation:

Let the Tens digit be x and Unit digit be y

We know,

x + y = 6 . . . (i)

By equation,

10x + y - 18 = 10y + x

9x - 9y = 18

x - y = 2 . . . (ii)

Solving (i) and (ii),

x = 4, y = 2

.°. The No. = 42