# An alloy contains alluminium and zinc in the ratio 5:3 and another alloy contains alluminium and copper in ratio 8:5...

+1 vote
29 views

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?

posted May 15

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

### Preview

Anti-spam verification:

Similar Puzzles

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?

+1 vote

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?