Question

A and B are two alloys of gold and copper prepared by mixing metals in the ration 7:2 and 7:11 respectively. If equal quantities of the alloys are melted to form a third alloy C, the ratio of gold and copper in C will be

A

5:7

B

5:9

C

7:5

D

9:5

Medium

Solution

verified
Verified by Toppr
Correct option is
C

7:5

Since we mix equal quantities, we take LCM of 9 and 18 18.
Then we have 14+4 in the first and 7+11 in the second.
Required ratio

Was this answer helpful?

upvote 0
downvote0