Answer Posted / vinod kumar, sriharikota

Dia of known bar d1=12 mm

spacing of known bar s1=150mm

d2=16mm , s2= ?

d1^2 / s1 = d2^2 /s2

s2 = (d2^2 x s1)/ (d1^2)

spacing of 16 mm bar =266.666 mm

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