Sum of tread and rise must lie between________?

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10Civil EngineeringMedium

A300 to 350 mm

B500 to 550 mm

C600 to 650 mm

D400 to 450 mm

Correct answer

D. 400 to 450 mm

Explanation

The correct answer is 400 to 450 mm.

Sum of tread and rise must lie between________? - Answer and Explanation | Academy of Pakistan