If `A= {rin z^+: x < 10 and x` ís a multiple of `3 or 4}`, where `z` is the set of positive integers, then the total number of symmetric relations on `A` is

If A = {x, y, z}, then the relation R={(x,x),(y,y),(z,z),(z,x),(z,y)} , is

If A = {x, y, z}, then the relation R={(x,x),(y,y),(z,z),(z,x),(z,y)} , is

If x,y,z in Z then (x +y) z = x, z +y , z - this law is called

Procter and Gamble Ltd. Is offering a free bucket on every purchase of Tide Washing Powder. In response to this Hindustan Unilever Ltd. Started a new scheme of giving free one kg of Rin Washing Powder with every purchase of five kg of Rin Washing Powder. Identify the plan stated in the above paragraph and explain it.

If x + y = 2z then (x)/(x-z) +(z)/(y-z) = ?