Question

My twin lives at the reverse of my house number. The difference between our house numbers ends in two. What are the lowest possible numbers of our house? Can you answer!​

Answer 1

Yeah! Thanks♡ for brain check :D

$\huge\red{\star\underline\mathfrak{Answer:-} }$

$\underline{\dag\:\textsf{According \: to \: given \: in \: question:}}$

$\: \: \bullet$ It is given that mine house number is reversed of my cousin house number (i.e. 21,12).

$\: \: \bullet$ Also, if we do difference between house number then we got two .

$\:\: \bullet$ So, let us assume that the house number will be of two digits.Now; make differences

$\underline{\dag\:\textsf{Let's \: head \: to \: the \: question \; now:}}$

$\:\:\star$ Now; start from smallest pair(11,11).Here we get 0 as result.

$\normalsize\ : \implies\ 11 - 11 = 0$

$\:\:\star$ The next pair(21,12) and 9 is result.

$\normalsize\ : \implies\ 21 -12 = 9$

$\:\:\star$ The third pair is(31,13) and result is 18.

$\normalsize\ : \implies\ 31 - 13 = 18$

$\:\:\star$ The fourth pair (41,14) and result is 27.

$\normalsize\ : \implies\ 41 - 14 = 27$

$\:\:\star$ The fifth pair(51,15) and 36 is result.

$\normalsize\ : \implies\ 51 - 15 = 36$

$\:\:\star$ The sixth pair(61,16) and 45 is result.

$\normalsize\ : \implies\ 61 -16 =45$

$\:\:\star$ The seventh pair(71,17) and 54 is result.

$\normalsize\ : \implies\ 71 -17 = 54$

$\:\:\star$ The eight pair (81,18) and 63 is result.

$\normalsize\ : \implies\ 81 - 18 = 63$

$\:\:\star$ The ninth pair(91,19) and finally answer is "72".

$\normalsize\ : \implies\ 91 - 19 =72$

$\bullet$ Here, we get the pair (91,19) in which we get 2 at unit place digit and 19 and 91 are the lowest possible numbers of house.

Answer 2

Answer:

19 and 91 is the correct solution