Question

The sum of a two digit number and the number obtained by interchanging the
digits of the number is 121. If the digits of the number differ by 3, find the
number.​

Answer 1

Answer:

74

Step-by-step explanation:

10x+y + 10y+x = 121

11 x + 11 y = 121

x+ y = 11 -------------------------(1)

If the digits of the number differ by 3

x-y = 3 ----------------------------(2)

equation- 1+2

2x = 14

x= 7

then y = 4

number= 10× 7+4= 74