Latest NDA Aptitude Question SOLUTION: If A is a relation on a set R, then which one of the following is correct ?
(a) R ⊆ A (b) A ⊆ R (c) A ⊆ (R ×R) (d) R ⊆ (A×A)
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.