Question

In a chemical factory the ratio of work done by (x - 2) workers in (x + 2) days to the work done by (x + 9) men in (x - 2) days is 1 ∶ 2, then calculate the value of x.
1. 4
2. 3
3. 7
4. None of these

Answer 1

Correct Answer - Option 4 : None of these

Given ∶

The ratio of work done by (x - 2) workers in (x + 2) days to the work done by (x + 9) men in (x - 2) days is 1 ∶ 2

Formula Used∶

Concept of Linear Equations.

Calculation∶

According to Question;

[(x - 2) ( x + 2)] / [(x + 9) (x - 2)] = 1/2

⇒ 2x + 4 = x + 9

⇒ x = 5

∴ The required value of x is 5.