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?  Choose the correct answer:  A) 20 rubies and 15 emeralds  B) 40 rubies  C) 28 rubies and 9 emeralds  D) None of these  E) Cannot be determined
Explanation :   The limits our wealth is the capacity of bag which is 12 Kg. So we should make each unit of weight to worth the max.   Rubee: 0.3 Kg worth 4 Crore,   so 1 Kg of Rubee is worth 4/(0.3) = 40/3 = 13.33 Crore.   Emerald: 0.4 Kg worth 5 crore   so 1 Kg of Emerald is worth 5/(0.4) = 50/4= 
<gadget id="calculator">50/4</gadget>
<output>25/2 = around 12.5</output>
12.5 Crore.   As value per kilogram is more for Rubee we should pick max rubees for max wealth.   Here we can accomadate the whole 12Kg with 40 rubees which is worth 160 Crore.   Answer : 40 rubies
<result>B</result>
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?