Q. If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is (Solved)
1. w (R + T)/T
2. w (R² + T²)/T
3. w (R + T)/T
4. w (R/T)
- b. w (R² + T²)/T
1. w (R + T)/T
2. w (R² + T²)/T
3. w (R + T)/T
4. w (R/T)