Question

sum of two numbers are 20. one of the number is 3 times than other.what are the numbers​

Answer 1

So the numbers are 15 and 5

Step-by-step explanation:

We Have :-

Sum of two numbers is 20

One Number is 3 times of the other

To Find :-

Numbers

Solution :-

Let the numbers be x and y

According to the question :-

x + y = 20 ------ ( 1 )

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

Putting ( 2 ) in ( 1 )

x + y = 20

3y + y = 20

4y = 20

y = 20/4

y = 5

So the numbers are :-

y = 5

x = 3y = 3× 5 = 15

So the numbers are 15 and 5

Answer 2

Answer:

Let the 2 numbers be x and y .

According to the question,

x+y=20

⟹y=(20−x)—−—−—−—−>1

And also,

y=(3x)[Given]—−—−—−—−>2

From equations 1 and 2,

⟹(20−x)=3x

⟹20=3x+x

⟹20=4x

⟹x=204

⟹x=(5)

And hence y=3x

Thus, ⟹y=(15)

Therefore,the two numbers are 5 and 15.

So their product =5×15= 75 .

Hope this will help you.

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