Multiple choice

Work done by ( (x + 5) ) men in ( (x + 5) ) days is equal to the work done by ( (x - 5) ) men in ( (x + 20) ) days. Then the value of x is-

  1. 15

  2. 25

  3. 30

  4. 35

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Using the work formula: Work = Men × Days. Given (x + 5)(x + 5) = (x - 5)(x + 20). Expanding: x² + 10x + 25 = x² + 15x - 100. Simplifying: 10x + 25 = 15x - 100, so 125 = 5x, therefore x = 25.