Latest NDA Aptitude Question SOLUTION: Which one among the following is the chemical formula of gypsum which is an ingredient of cement ?
(a) Ca2SiO4 (b) CaSO4.2H2O (c) CaO (d) CaSO4.3H2O
The person who can solve mathematical problems,can lead life easily ,Maths tellu that every problem as solution...we can find number of solutions for one problem ...Aplly it in the life also we can lead our life happily...
swetha
Arithmetic is numbers you squeeze from your head to your hand to your pencil to your paper till you get the answer