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Difficulty: EasyRatio, Proportion, and Percent Calculations

The table below displays the vehicle fleet composition across four regional divisions of a logistics corporation.

DivisionElectric VehiclesGasoline VehiclesTotal Vehicles
North120280400
South160240400
East90210300
West230270500

What percentage of the total fleet across all four divisions consists of electric vehicles?

Answer: 37.5 %

Answer

The percentage of the total fleet consisting of electric vehicles across all four divisions is 37.5%37.5\%.
To find the overall percentage of electric vehicles, sum the number of electric vehicles across all divisions (120+160+90+230=600120 + 160 + 90 + 230 = 600) and divide by the overall total number of vehicles (400+400+300+500=1600400 + 400 + 300 + 500 = 1600). Dividing 600600 by 16001600 gives 0.3750.375, which equals 37.5%37.5\%.

Step-by-Step Solution

1
Calculate the total number of electric vehicles across all divisions.
120+160+90+230=600120 + 160 + 90 + 230 = 600 electric vehicles.
Summing the electric vehicle column values gives the total count of electric vehicles.
2
Calculate the total vehicle count across all divisions.
400+400+300+500=1600400 + 400 + 300 + 500 = 1600 total vehicles.
Summing the total vehicle column values provides the aggregate denominator.
3
Compute the required percentage.
6001600×100%=37.5%\frac{600}{1600} \times 100\% = 37.5\%.
Dividing total electric vehicles by total vehicles yields the aggregate proportion.

Key Concept

Ratio, Proportion, and Percent Calculations
Estimated Time:1m 0s
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Topics

Ratio, Proportion, and Percent Calculations

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