Answer these questions based on the figure which represents the flow of natural gas through pipelines across major cities A, B, C, D and E (in suitable units). Assume that supply equals demand.
We can see that the supply in E = 550 + 800 + 650 = 2000.
As we are given that the supply is equal to demand, we can say that the demand in E is 2000.
We are also given that 80% of the demand in A is equal to the demand in E.
$$\dfrac{80}{100}\left(demand\ in\ A\right)\ =\ 2000$$
$$demand\ in\ A\ =\ 2500$$
Hence, the correct answer is option B.
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