The life of teakwood doors and windows is usually take as HomeEstimation and Costing MCQsThe life of teakwood doors and windows is usually take asQ. The life of teakwood doors and windows is usually take asA. 100 yearsB. 80 yearsC. 75 yearsD. 40 yearsAnswer: 80 years
A cement concrete road is 1000 m long, 8 m wide and 15 cm thick over the sub-base of 10 cm thick gravel. The box cutting in road crust is