Question

the sum of two ,2digit number is 25 and their difference is 1 the two number are​

Answer 1

Answer:

Step-by-step explanation:

Let the two nos. be a and b respectively and let a be greater than b

a+b=25

a-b=1

Now adding th two eqns.

we get,   2a=26

           or, a=13

So b=25-13=12

     b = 12

So the two nos are 12 and 13

Answer 2

Answer:

The two numbers be 13 and 12.

Solution:

Given,

There are two 2-digit number. Let the two numbers be x and y.

From the given, their sum will be equal to 25

Therefore,

$x+y=25$

Also, their difference will be equal to 1.

Therefore,

$x-y=1$

Solving these two equations, we can get,

$2x=26$

$x=13$

Substitute the value of x in the first equation, we get,

$13+y=25\\\\y=25-13\\\\y=12$

Thus, the two two-digit numbers be 13 and 12.