Question

8 workers can load 4320 bricks on to a truck in 1 hour if the bricks are to be loaded on the truck in 40 minutes.how many workers
will be needed

Answer 1

60 minutes to load 4320 bricks by 8 workers
1 minute ____________________ 60 × 8
40_________________________60×8 /40
= 12 Workers

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Answer 2

Answer:

12 workers

Step-by-step explanation:

First of all we need common UNIT for values to do the calculations correctly.

So, 1 hour = 60 mins.

8 workers -> 4320 bricks -> 60 mins

? workers -> 4320 bricks -> 40 mins

As you can see, here in both cases, the no. of bricks remains same. So we just need to consider the number of workers and the time taken.

60 mins -> 8 workers

So, 1 min -> 8 * 60 = 480 workers

We have 40 mins.

So, 40 mins -> 480 / 40 = 12 workers

i.e, we need 12 workers to do the task in 40 mins.