Question

Gauri and Shankar are students of class 12. Their teacher told to collect the names of 5
students of class 9 and 4 students of class 8 for a project. They collected the name and write
in the forms of set as following.
A = {Mathew, Steven, Mohit, Issac, Parithosh)
B = {Syriac, Rishi, Madhuri, Ritika)
Using the information given answer the following
(i) How many relation exist from set A to set B

(a) 20 (b) 220 (c) 54

(d) 45

(ii) Let f : B → A defined by f = {(Syriac, Mathew)( Rishi, Mohit)
( Rithika, Issac)(Madhuri,Steven)(Rithika, Parithosh) }, then f is

(a) One-one onto (b)Many one onto (c)Many one into (d)None of this

(iii) How many reflexive relations defined on set B
(a) 220 (b) 212 (c) 210 (d) None of this

Answer 1

Answer: answer a

Step-by-step explanation: it is in all