## Table of Contents – A Number is Doubled and 9 is Added (Problem Solved)

## Important Points to Solve the Problem

- A number is doubled and 9 is added.

- It becomes 75 if resultant is trebled.

The number can be figure out as:

Let suppose the number is y.

Now, number “y” is double and 9 is added

2y + 9

Resultant (2y + 9) is trebled

3(2y + 9) = 75 ________ (i)

Value of y can be find out easily from equation (i) by just simplifying it (y = 8).

## To Find

Number = ?

## Solution

Let suppose

Number = y

According to the given condition

3(2y + 9) = 75

2y + 9 = 25

2y = 25 – 9

2y = 16

y = 8

**Required Number = 8 answer**

## Conclusion

To read more about the Number Theory: Please Click Here