MCQ
If $12$ workers can build a wall in $50$ hours, how many workers will be required to do the same work in $40$ hours?
  • A
    $10$
  • B
    $13$
  • C
    $14$
  • $15$

Answer

Correct option: D.
$15$

$12 \times 50 = x \times 40$
$\text{x}=\frac{(12\times50)}{40}=15$

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