The mass of coal in a railway carriage is 60 tons. a dump truck can take a third of this load.

| September 1, 2021 | education

The mass of coal in a railway carriage is 60 tons. a dump truck can take a third of this load. How many trips do you need to make on a dump truck to unload 6 such wagons.

Let’s calculate how much weight a dump truck can take at one time.

According to the condition of the problem, the mass of coal in a railway carriage is 60 tons, and a dump truck can take a third of this cargo, therefore, the mass of coal that can be taken away at a time on a dump truck is (1/3) * 60 = 20 tons.

Let’s find the total weight of the coal in the cars.

According to the condition of the problem, there are a total of 6 such cars with coal, therefore, the total mass of coal for all six cars is 6 * 60 = 360 tons.

Consequently, the dump truck will transport all this cargo in 360/20 = 36/2 = 18 trips.

Answer: in order to unload 6 such wagons, a dump truck will need to make 18 trips.



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