The proportion of copper and zinc in the brass is . How much zinc will there be in 100 kg of brass?
A. 20 kg
B. 35 kg
C. 55 kg
D. 14 kg
Answer:B
The proportion of copper and zinc in the brass is . How much zinc will there be in 100 kg of brass?
A. 20 kg B. 35 kg C. 55 kg D. 14 kg