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Question
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The distance travelled by CNG bus and the amount of CNG used.
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Solution
The distance travelled by CNG bus and the amount of CNG used are directly proportional.
E.g. Let a CNG bus can travelled 10 km in 1 kg of CNG.
Then, the same CNG bus travelled 20 km in 2 × 1 = 2 kg of CNG.
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