A relation R is said to be circular if aRb and bRc together imply cRa. Which of the following options is/are correct?

Let R be a relation on the set of ordered pairs of positive integers such that ((p, q), (r, s)) ∈ R if and only if p - s = q - r. Which one of the followin...

A palindrome is a word that reads the same forwards and backwards. In a game of words, a player has the following two plates painted with letters. From...