Question

One number is thrice the other number , and sum of both number is 20 find the smallest number.​

Answer 1

Answer:

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

Answer 2

Answer:

5

Step-by-step explanation:

Let the number will be x

and other number is thrice 3x

and sum both number is 20

x + 3x= 20

4x=20

x=20/4

x=5