If the cost of purlins/unit area is p and the cost of roof covering/un – McqOptions

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1.	If the cost of purlins/unit area is p and the cost of roof covering/unit area is r, then cost of trusses/unit area for an economical spacing of the roof trusses will be
A.	p + r
B.	2p + r
C.	p + 2r
D.	2p + 2r
Answer» C. p + 2r

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