If the digit of a two digit number is reversed, then the number is decreased by 36. Which of the following is correct regarding the number?

i) The difference of the digits is 4.

ii) The value of number can be 84.

iii) Number is always a composite number.

1 and 2

Possible numbers → \(\frac{36}{9}\) = 4 .... (Difference between two digits)

15           51     x

26           62     x

73           37     √

84           48     √

95           59     √

51           15     √

62           26     √

i)                    Following is right      \(\frac{36}{9}\) = 4

ii)                   Following is right       = 84

iii)                 Following is not right because =73 is prime number