Question

The ratio of gold and silver in an alloy is 7 : 3 respectively. If the weight of the gold in the alloy is 61.6 gm. Find the weight of silver in the alloy.
1. 13.2 gm
2. 20.0 gm
3. 26.4 gm
4. 22.4 gm

Answer 1

Correct Answer - Option 3 : 26.4 gm

Given:

The ratio of gold and silver in an alloy = 7 ∶ 3 

The weight of the gold in the alloy = 61.6 gm

Calculations:

The weight of silver in the alloy = (61.6/7) × 3 = 8.8 × 3 = 26.4 gm

∴ The weight of silver in the alloy is 26.4 gm.