In India, are prefabricated components costlier than those of traditional cast-in-situ items that the prefabricated components replace?

In India, are prefabricated components costlier than those of traditional cast-in-situ items that the prefabricated components replace? Correct Answer No, because of repetitive manufacture of a number of elements

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L is older than M and taller than N. O is younger than P, older than N and shorter than Q. R is older than S, younger than N, shorter than S and taller than Q. S is older than L, M, O, P, Q, R and S is necessarily false?