Loading [MathJax]/jax/output/HTML-CSS/jax.js
Home / Aptitude Tests / Mathematics / The identity el...
The identity element with respect to the multiplication...

The identity element with respect to the multiplication shown in the diagram below is pprsprprpqpqrsrrrrrsqsrq

A.

p

B.

q

C.

r

D.

s

Correct answer is B

The identity element (e) under an operation, say , is the element such that for any given element under the operation, say a,

ae=ea=a

From the table, q is the identity element.

pq=qp=p

Same as all through.