a) 50%
b) 33%
c) 40%
d) 60%
Answer: b
Explanation: In working stress method, working stress ≤ permissible stress.
Stress due to dead load + live load ≤ permissible stress
Stress due to dead load + wind load ≤ permissible stress
Stress due to dead load + live load + wind load ≤ 1.33 permissible stress.
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