Gold is 10 times as heavy as water and copper is 5 times as heavy as water. In what ratio should these be mixed to get an alloy 6 times as heavy as water?  Select the correct option: A) 3:2 B) 1:4 C) 3:1 D) 5:2 E) 4:3
G = 10W   C = 5W   Let 1gm of gold mixed with x gm of copper to get 1+x gm of the alloy   1gm gold + x gm copper = x+1 gm of alloy   10W+5Wx = x+1 * 6W   10+5x = 6(x+1)   x = 4   Ratio of gold with copper = 1:4 = 1:4   Answer is 1:4
<result>B</result>
Gold is 10 times as heavy as water and copper is 5 times as heavy as water. In what ratio should these be mixed to get an alloy 6 times as heavy as water?