Arithmeticeasy · Past Paper
Ratio of zinc and copper in brass is 13:7. How much zinc is there in 100kg of brass?
A65 kg
B35 kg
C70 kg
D60 kg
✓ Correct Answer: A — 65 kg
Total = 20 units. Zinc = (13/20) * 100 = 65 kg.
Share this question
More from Arithmetic
- A certain amount is divided in ratio 2:3:5. If the smallest part is 50, find the largest part.
- If 8% of x = 6% of y, then 20% of x = ?
- If x:y = 5:2, find the value of (8x+9y) / (8x+2y).
- Find the value of x if 10% of x is 50.
- The ratio of two numbers is 5:9. If 10 is subtracted from each, the ratio becomes 5:11. The numbers are: