From the following particulars calculate labour cost per hour:

(a) Basic salary, ₹200 per working day

(b) Dearness allowance per month, ₹5 per/ every point over 100 cost of living index (current cost of living index is 700 points)

(c) Leave salary, 10 per cent of [ (a) + (b)]

(d) Employer’s contribution to provident fund, 8 per cent of [ (a) + (b) + (c)]

(e) Employer’s contribution to state insurance, 2.5 per cent of [ (a) + (b) + (c)]

(f) Expenditure on amenities to labour, ₹1,000 per head per month

(g) Number of working days in a month, 25 days of 8 hours each.