For the following questions answer them individually
The recommendation of setting up of National Environment Management Authority and State Environment management Authority has been proposed by:
A sum of money at compound interest doubles itself in 15 years. It will become eight times of itself in?
An alloy of steel contains iron and carbon in the ratio 3:4. If 120 kg of iron is added to the alloy, then the same ratio become 5:4. Find the initial quantity of iron in the alloy.
Which of the following places the common data elements in order from smallest to largest?