Latest NDA Aptitude Question SOLUTION: Which one among the following is not a chemical change ?
(a) Curdling of milk (b) Ripening of fruit
(c) Evaporation of water (d) Burning of coal
The wonder is not that mathematics describes the world so well but that it describes it at all.
Unknown
Pure mathematics is the world's best game. It is more absorbing than chess, more of a gamble than poker, and lasts longer than Monopoly. It's free. It can be played anywhere - Archimedes did it in a bathtub.