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19 November, 19:19

The top three countries in oil consumption in a certain year are as follows: the United States, China, and Japan. In millions of barrels per day, the three top countries consume 32.2 million barrels of the world's oil. The United States consumes 12 million more barrels a day than China. China consumes 3.2 million barrels a day than Japan. How many barrels of the world oil consumption did the United States, Japan, and China consume

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  1. 19 November, 23:11
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    Answer: Consumption of,

    Japan = 4.6 million barrel,

    China = 7.8 million barrel,

    The US = 19.8 million barrel.

    Step-by-step explanation:

    Let x be the quantity of oil per day consumed by Japan,

    ∵ China consumes 3.2 million barrels a day than Japan.

    So, the consumption of China = (x + 3.2) million Barrel,

    Also, The United States consumes 12 million more barrels a day than China.

    So, the consumption of the US = (x + 3.2 + 12) = (x + 15.2) million barrel,

    Thus, the total consumption of these three countries

    = x + x + 3.2 + x + 15.2

    = (3x + 18.4) million barrel,

    According to the question,

    3x + 18.4 = 32.2

    3x = 32.2 - 18.4

    3x = 13.8

    ⇒ x = 4.6

    Hence, Japan, China and the US consume 4.6 million barrel, 7.8 million barrel and 19.8 million barrel respectively.
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