Question

The digits of a two digit number diffre by 3. if the digits are interchanged and the resulting number is added to the original number , we get 143. what can be the original number.​

Answer 1

Answer:

two digit are 5 & 8

Step-by-step explanation:

A. T. Q

x-y=3 (1 equation) &

(10x+y)+(10y+x) =143. (2 equation).

now, 10x+y+10y+x=143

11(x+y)=143

x+y=143/11

x+y=13 (3 equation )

adding 1& 3 equation

x-y+x+y=13+3

2x=16

x=16/2=8

x=2 from 3 equation

x+y=13

8+y=13

y=13-8

y=5.

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