Which of the following cannot be the difference
between a two digit number and the number
obtained by interchanging the digits?
(A)72
(B)36
(C) 54
(D)48
Answers
Answered by
9
Answer:
36
Step-by-step explanation:
3+6 =9 :. x+ y =9 -------(1)
6- 3 = 3 :. y-x +6 ---------(2)
x+y = 9
y-x =3
2y= 12
y =6
Answered by
22
Answer:
48
Step-by-step explanation:
Let the number be 10x + y.
The reversed number will be 10y + x.
Difference = (10x + y) - (10y + x)
= 10x + y - 10y - x
= 9x - 9y
= 9(x - y)
The difference should be a multiple of 9.
Thus, 48 cannot be the difference.
Similar questions