You can collect as many rubies and emeralds as you can. Each ruby is worth Rs. 4 crore and each emerald is worth Rs. 5 crore. Each ruby weighs 0.3 kg. And each emerald weighs 0.4 kg. Your bag can carry at the most 12 kg. What should you collect to get the maximum wealth?
Explanation:
To maximise the value of the wealth, we must carry more of the one whose value per kilogram is more. Value per kilogram of ruby = 40.3 = Rs. 13.33 crore, and value per rupee of each emerald = 50.4 = Rs. 12.5 crore.
It is obvious that we should carry entire 12 kg of ruby. This would amount to 120.3 = 40 rubies.
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