If an alloy contains copper and silver in the ratio 3:7, then the percentage quantity of silver to the alloy is?
- 90%
- 60%
- 70%
- None of these
Explanation
Given:
Copper : Silver = 3 : 7
Step 1: Find total parts
3+7= 10
Step 2: Silver = 7 parts
Silver percentage= 7/10 x100
Related MCQs
- (Total ÷ Part) × 100 B)
- (Part ÷ Total) × 100
- (Part × Total) ÷ 100
- (Total − Part) × 100
اس سوال کو وضاحت کے ساتھ پڑھیں
- Rs. 800
- Rs. 1,200
- Rs. 1,600
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- Does not changes
- Decreased by 4%
- Increased by 4%
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- Rs. 302.75
- Rs. 302.25
- Rs. 302.50
- None of these