Estimate the quantity of plastering (for two faces) required in wall of 4 m long, 3 m high and 30 cm thick. Also calculate the cost of plastering, if the rate of plastering is Rs. 8 per sq. m.
1
1.2 sq. m & Rs. 9.6/-
2
2.4 sq. m & Rs. 19.2/-
3
12 sq. m & Rs. 96/-
4
24 sq. m & Rs. 192/-