Which one of the followings in not correctly matched (approximately) ?

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Q: 40 (IES/2008)
Which one of the followings in not correctly matched (approximately) ?

question_subject: 

Geography

question_exam: 

IES

stats: 

0,4,8,4,2,2,4

keywords: 

{'imperial gallons': [0, 0, 1, 0], 'litres': [0, 0, 2, 1], 'kilograms': [0, 0, 1, 0], 'acres': [0, 0, 1, 0], 'pounds': [0, 0, 1, 0], 'kg': [0, 1, 9, 24], 'followings': [2, 0, 2, 0]}

The given question asks us to identify which option is not correctly matched in terms of approximate conversions.

Option 1 states that 4 imperial gallons is approximately equal to 18.18 litres. This conversion is correct as 1 imperial gallon is approximately equal to 4.54609 litres.

Option 2 states that 4 pounds is approximately equal to 1.81 kilograms. This conversion is also correct as 1 pound is approximately equal to 0.45359237 kilograms.

Option 3 states that 30 pounds per square inch is approximately equal to 2.07 kilograms per square centimeter. This conversion is correct as 1 pound per square inch is approximately equal to 0.070307 kilogram per square centimeter.

Option 4 states that 5 hectares is approximately equal to 18.35 acres. This is not correct as 1 hectare is equal to approximately 2.47105 acres. Therefore, the correct answer is option 4.

In conclusion, the given answer is correct.

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