Question

When 30% of a number is added to the number, the result is 143. Find the number described.

Answer 1

30%x + x = 143
.30x +x = 143
1.30x =143
divide each side by 1.30
x = 110

check
(30% x 110) + 110 = 143
33 + 110 = 143
143 = 143

hope this helps.

Answer 2

Number = 110 .

Explanation:

Given : when 30% of a number is added to the number, the result is 143.

To find : Find the number described.

Solution : We have given 30% of a number is added to the number,

Let the number = x

According to question :

30% of a number x =
`(30*x)/(100)` =
`(3*x)/(10)`.

Added to the number

x +
`(3*x)/(10)` =143 .

On taking common denominator

`(10x+ 3*x)/(10)` = 143 .

`(13*x)/(10)` = 143 .

On multiplying both sides by 10 .

13 x = 143 *10.

13 x = 1430.

On dividing both sides by 13 .

x= 110.

Therefore, Number = 110 .