A person spent 30% of his monthly income on food and 60% of the remaining on rent. If amount spent on rent is Rs 840, then find the amount spent on food.
Dry powder fire extinguishers contain
Which of the following is an iron ore ?
Electric bulbs are filled with :
What happens to the weight of Iron, when it rusts?
What is the order of distance for interatomic forces to be active?
Which mineral is the ore Of aluminium?
The nucleus of an atom consists of-
Water gas is the mixture of
