2.A project of alterations and additions to an existing house; includes to brick up some new brick walls.
The table below provide technical information to be able to calculate the quantity of materials and its cost. Note there are some missing information that you also need to complete in the table. (Show all your calculations in the same table. [7 marks]  

Brick size 222 mm x 106 mm x 73 mm
Mortar joint12 mm
a)The wall was done using stretcher bond, Calculate the area of 1 brick  - 1mark
Type of wall Single wall
Area of walls200 m2
Area of doors and windows (voids) 20 m2
Wastage5%
b)Calculate the area of bricks- 1 mark
c)Calculate quantity bricks to brick up those new walls – 2 mark
d)Calculate quantity of cement – 1 mark
e)Calculate quantity of sand – 1 mark
Cost of 1000 bricksR1500.00
Cost of 1 bag of cementR60.00
Cost of 1m3 sandR120.00
f)Calculate the total cost of materials to brick up the new walls (including bricks, sand and cement) – 1 mark