Question

The sum of natural number is 20while their difference is 4 find number

Answer 1

Answer:

let x and y be the 2 natural no.

x + y = 20  and   x - y = 4

solving u will get x = 8 and y = 12

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Step-by-step explanation:

Answer 2

Let the required natural numbers are a and b, where a is the larger number than b.


It is given in question that the sum of numbers is 20 and difference between them is 4 .


According to the question :


Sum of both the numbers = 20

Sum of a and b = 20

= > a + b = 20 ---: ( 1 )


Also, their difference is 4 .

Difference between a and b = 4

= > a - b = 4 ----: ( 2 )



Now, adding ( 1 ) and ( 2 ),

= > a + b + ( a - b ) = 20 + 4

= > a + a + b - b = 24

= > 2a = 24

= > a = 12


Then, substituting the value of a in ( 1 ),

= > a + b = 20

= > 12 + b = 20

= > b = 20 - 12

= > b = 8



Hence,
Required natural numbers are 12 and 8.
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