Question

A mining company having three mines A, B and C supplies coal to three power plants P, Q and R located close to the mines. The daily production capacities of the three mines in tonnes are 700, 1200, and 1100 respectively. The daily requirements at the power plants in tonnes are 1000, 1000, and 1000 respectively. The transportation costs in rupees per tonne is given in the matrix below:

Power plantPQR
Mine
A152060
B54020
C301050

The total cost of coal transportation in rupees from the three mines to three power plants using the least-cost method is ______.

NAT

Min: 65000 Max: 67000

Answer: 66000

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