GATE 2024 AR — Planning – Question 64
The diagram relates labour supply X to urban growth Y. Ratios A:A′ and B:B′ are 1:1.2 and 3:1.2. If labour supply at B is 6 units, find growth at B′, to one decimal.
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Correct answer: 2.4 to 2.4
Explanation
The specified B:B′ ratio directly relates the labour input to its corresponding growth:3:1.2. At B=6, multiply both ratio terms by 2 to obtain B′=2.4 units. The A:A′ ratio describes a different point and is not needed to rescale the B pair.