

MCQOPTIONS
Saved Bookmarks
1. |
Zinc and copper are in the ratio 5 : 3 in 400 gm of an alloy. How much of copper (in grams) should be added to make the ratio 5 : 4? |
A. | 50 |
B. | 66 |
C. | 72 |
D. | 200 |
Answer» B. 66 | |