Question

the sum of 2number is 25 and their difference is 13.find the number​

Answer 1

Answer:

let the first number be x

let the second number be y

according to the first condition,

x+y=25

according to the second condition,

x-y=13

solving both the equations,

we get

2x=38

x=19

so y=6

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Answer 2

let the digit at the unit place be x and the digit of the tens place be y

therefore the number =x + 10y

ATQ,

x + y=25........1

x-y=13.........2

hope you can solve the rest.

the answer will be 19 and 6