Estimate the net cost unit rates for following items and calculate the total net cost of these items. (Hint: Build up the unit rate per billing unit using first principles, show all calculations, )

 

Items a Common brickwork in 1:1:6 composition mortar in 76mm thick on ledge walls. Unit Total m b Face brickwork in 1:1:6 cement mortar m coloured by the addition of yellow loxide in 110 thick skins of cavity walls having joints ironed on one face. Qty 65 175 Rate Total