Question

1.Mr. Bhalla bought a Ring of gold far 1,00,000 and sold it when the price went up by 12.375%. Find the
increased price?
z
2. Air contains nitrogen, oxygen and other gases in the ratio 14.5:1 Find the percentage of oxygen in air.
3.If in a cylinder of air, mass of oxygen is 100 g, what is the mass of air?

please answer me step by step please friends ​

Answer 1

1. first we have to calculate the 1%

so ,

100000/ 100

1000= 1%

1000× 12.375

= ₹12345

the increased price is ₹12345 .

2. = 14+5+1= 20

= 14/20:5/20:1/20

the percentage of oxygen in air is 5/20 ÷100

= 5×1/20×100

= 5/200

= 40%

the percentage of oxygen in air is 40%

Answer 2

Answer:

1st ans 12345 thank you ✌️✌️