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An alloy contains alluminium and zinc in the ratio 5 : 3 and another alloy contains alluminium and copper in the ratio 8 : 5. If equal weights of both the alloys are mixed together, then what would be the weight of copper per kg in the resulting alloy?
Ratio of the metals in the new alloy
Al : Zn : Cu = (5/8 + 8/13) : (3/8) : (5/13)
= (129/104) : (3/8) : (5/13)
= 129 : 39 : 40
Therefore the copper in the new alloy
= 40/208 = 5/26 kg per kg of the alloy
An alloy contains zinc and copper in the ratio of 5 : 8 and another alloy contains zinc and copper in the ratio of 5 : 3 . If equal amount of both the alloys are melted together .
What is the ratio of zinc and copper in the resulting alloy ?
A box contains 420 coins of one rupee, 50 paise and 25 paise, The values of each kind of the coins are in the ratio of 8 : 4 : 3. Then how many 50 paise coins are there in the box?
A bag contains 1 rupee, 50 paise and 25 paise coins in the ratio 5:7:9 if he total amount in the bag is Rs 430 find the number of coins of each?
A mixture contains milk and water in the ratio 5 : 1. On adding 5 liters of water, the ratio of milk and water becomes 5 : 2. What was the quantity of milk in the original mixture?
A and B are two alloys of Gold and Copper prepared by mixing metals in the ratio 7:2 and 7:11 respectively.
If equal quantities of alloys are melted to form a third alloy C, find the ratio of Gold and Copper in C ?
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