Quick practice
Question 1 of 5
Consider the following statements:
- The cost of a truss is directly proportional to the spacing of roof trusses.
- The cost of purlins is inversely proportional to the spacing of roof trusses.
- The cost of roof coverings is directly proportional to the spacing of roof trusses.
Which of the following statements is/are incorrect?
A
1 only
B
2 only
C
1 and 2
D
3 only
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