A factory buys 10 machines. 1 Machine­A, 4 Machine­B and rest Machine­C. Prices of the machines are Rs 90000, Rs 40000 and Rs 40000 respectively. Calculate the average cost of these machines?

A factory buys 10 machines. 1 Machine­A, 4 Machine­B and rest Machine­C. Prices of the machines are Rs 90000, Rs 40000 and Rs 40000 respectively. Calculate the average cost of these machines?
1). 56666.6
2). 68333.3
3). 45000
4). 43500

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