Question

If a five digit number is written as pqrst, then the
difference of pqrst and prsqt will always be divisible
by
(1) 9
(2) 18
(3) 45
(4) All of these
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Answer 1

Answer:

4 all of theses

Step-by-step explanation:

I am not sure

Answer 2

Option (4) is the correct answer for this question ......