Answer-The digits of a two-digit number ‘N’ are reversed to form a new number ‘M’....

ATQ Let the original number N 10a b So, the new number M 10b a ATQ N M 54 So, 10a b 10b a 54 Or, 9a 9b 54 Or, a b 6 So, possible pairs of a and b 9, 3, 8, 2, 7, 1 So, possible values of N 93, 82, 71 Alternate Solution From option a N 39 So, M 93 Since, M N not possible N 71 So, M 17 Also, N M 71 17 54