Question

If 1 gram of gold costs 4000 rupees, then how much does 200 milligrams of it cost?

• A. 2000 rupees
• B. 8000 rupees
• C. 800 rupees
• D. 800000 rupees

Answer 1

The correct option is C 800 rupees

1 gm of gold costs 4000 rupees.

1 gm = 1000 mg

So, 1000 mg of gold costs 4000 rupees.

$=>$ 1mg costs $\frac{4000}{1000}$ rupees.
$=>$ 1 mg costs 4 rupees

But, we are given 200 mg of gold.
$\therefore$ 200 mg of gold costs $4\text{rupees}\times 200=800$ rupees.