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The cost of 4kg onion, 3 kg wheat and 2k...

The cost of 4kg onion, 3 kg wheat and 2kg rise in Rs. 40. The cost of 2kg onion, 4 kg wheat and 6 kg rice in Rs.90. The cost of 6kg onion, 2kg wheat and 3 kg rice is Rs.70. Find cost of each item per kg by matrix method.

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The correct Answer is:
x = 5, y = 8 and z = 8
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