Question

Silver and copper are mixed in the ratios 2:5 and 4:7 to prepare two alloys A and B. Equal
quantities of these alloys A and B are mixed to prepare a third alloy C. The ratio of silver
and copper in C is

Answer 1

Ratio of Gold and Copper in Alloy A = 2 : 5
Ratio of Gold and Copper in Alloy B = 4 :7
Amount of Gold in Alloy A = 2/7
Amount of Gold In Alloy B = 4/11
Amount of Copper in A = 5/7
Amount of Copper in B = 7/11
Amount of Gold In C,
= (Amount of gold in A + Amount of gold in B) = (2/7) +(4/11) = (22+28)77 = 50/77.
Amount of Copper in C,
= Amount of Copper in A + Amount of Copper in B = (5/7) + (7/11) = (55+49)/77=104/77.
So,
Ratio of Gold and Copper in C,
= 50/77:104/77
50:104

Answer 2

Answer:

Confused in :-

1. Alloys are in equal quantity.

2. Alloys are mixed in equal quantity.

Please help......

Step-by-step explanation: