A factory buys 8 machines - 3 Machine A, 2 Machine B and rest Machine C costing Rs 100000, Rs 80000 and Rs 45000 respectively. Calculate the average cost of these machines?
Cost of machines A, B and C respectively are : Rs. 1,00,000 , 80,000 and 45,000
Number of machines A, B and C respectively are : 3 , 2 , 3
=> Total cost = $$(3 \times 100000) + (2 \times 80000) + (3 \times 45000)$$
= 300000 + 160000 + 135000 = Rs. 5,95,000
$$\therefore$$ Average cost = $$\frac{5,95,000}{8}$$ = Rs. 74,375
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