Question

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If 15 workers can finish a task in 42 hours, calculate the number of workers required to complete the same task in 30 hours.

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Answer 1

Answer:

21 workers...

Explanation:

Here are the steps....

42 hours are needed to finish a task by ---- 15 workers

In 1 hour , the same task can be finished by -----

(42×15) workers

Therefore , 30 hours are needed to finish the same task by ------ (42×15/30) workers

= 21 workers