Question

Verify with numbers 45 and 69 that the
difference of a number and the number
obtained by reversing its digits is always
divisible by 9.​

Answer 1

Answer:

A 2 digit number can always be written as a combination of 2 different numbers.

for eg:–

65 = 10 × 6 + 5 → 6 is at tens place and 5 is at ones place.

23 = 10 × 2 + 3 → 2 is at tens place and 3 is at ones place

Thus, any two digit number can be written in a general form as 10 × x + y

Similarly,

572 = 5 × 100 + 7 × 10 + 2

123 = 1 × 100 + 2 × 10 + 3

The three digit number xyz can be written as 100 × x + 10 × y + z

Answer 2

$\bf\huge{Question:-}$

Verify with numbers 45 and 69 that the

difference of a number and the number

obtained by reversing its digits is always

divisible by 9.

$\bf\huge{answer:-}$

refer the attachment