Question

A man takes 9 minutes to load a box in a truck. 8 boxes can be loaded into a truck. If 16 men load for one and a half hours, how many trucks will be loaded?

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer:

20 truck were loaded.

Step-by-step explanation:

Given : A man takes 9 minutes to load a box in a truck. 8 boxes can be loaded into a truck. If 16 men load for one and a half hours.

To find : How many trucks will be loaded?

Solution :

According to question,

1 men take 9 minutes to load 1 box.

16 men take 9 minutes to load 16 boxes.

We know, 16 men load for one and a half hours.

Convert one and a half hours into minutes,

$1\frac{1}{2}hr=60+30=90 min$

In 9 minutes they load  = 16 boxes

In 90 minutes they load = $16\times\frac{90}{9}$ boxes

In 90 minutes they load = 160 boxes

8 boxes can be loaded into a truck.

i.e. 8 boxes = 1 truck

1 box = $\frac{1}{8}$ truck

160 boxes =  $\frac{1}{8}\times 160$ truck

160 boxes = 20 truck.

Therefore, 20 truck were loaded.