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(i) Assume that on a diwali day Neeraj Gautam went to market with Vanya and Paurush to buy fireworks. Each of them selected fireworks of their choice. Neeraj gave Rs.60 for 3 rockets, 4 fountains and 2 bombs, while Vanya gave Rs. 76 for 6 fountains, 2 rockets and 3 bombs and Paurush gave Rs.80 for the cost of 2 fountains, 4 rockets and 6 bombs. If the cost of same item of firework is same. Find the cost of each item per unit by matrix method.