The ratio of copper and zinc in brass is 17: 13. How much amount of copper will be there in 240 kg of brass?

Correct option is A

Given:
Ratio of copper to zinc in brass = 17:13
Total weight of brass = 240 kg
Formula Used:
Amount of copper in brass =$$\text{Amount of copper} = \left( \frac{\text{Copper's ratio}}{\text{Total ratio}} \right) \times \text{Total weight of brass}$$​​
Solution:
Total ratio = 17 + 13 = 30
Amount of copper = $$\frac{17}{ 30} × 240$$​​
Amount of copper = 136 kg