(a) Papermill running costs of \$75246 are split labour : materials = 5 : 1. Find labour costs. [2]

(b) Profit rises from \$135890 in 2012 to \$150675 in 2013. Find the percentage increase. [3]

(c) The 2012 profit was 7% above 2011. Find the 2011 profit. [3]

Paper rolls have outer radius 30 cm, wooden core radius 2 cm and height 21 cm.

(d(i)) Find the volume of paper in one roll. [3]

(d(ii)(a)) Sheets are 21 cm by 29.7 cm and 0.125 mm thick. Convert the thickness to centimetres. [1]

(d(ii)(b)) Find the number of whole sheets cut from one roll. [4]