Question

If 20 is added to twice a number ,the result is 100.Find the number​

Answer 1

Answer:

40

Step-by-step explanation:

To find the original number, the easiest method would be to do its inverse.

100 - 20 = 80

80 divided by 2 = 40

You can check your answer by doing this calculation:

40 x 2 = 80

80 + 20 = 100

Answer 2

Answer:

40

Step-by-step explanation:

Let x be the number 

Therefore, two times of the number is 2x

On adding of 20 we get 2x+20

2x+20=100

⇒ 2x=100-20

⇒ x= 80/2

⇒ x=40

Therefore, the required number is 40