Let A = a, b, c and B = 1, 2, 3, 4. Then the number of elements in the set C = f: A → B | 2 f(A) and f is not one-one is _ _ _.

Sets, Relations and Functions: JEE Main 2020 Mathematics question

JEE Main 2020 · 5 Sep, Evening shift · Q27

JEE Main 20205 Sep, Evening shiftMathematicsMediumSets, Relations and Functions168× since 2002

Let A = {a, b, c} and B = {1, 2, 3, 4}. Then the number of elements in the set C = {f : A

\to

B | 2

\in

f(A) and f is not one-one} is ______.

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2020 · 5 Sep, Evening shift · Q27

JEE Main 20205 Sep, Evening shiftMathematicsMediumSets, Relations and Functions168× since 2002

Let A = {a, b, c} and B = {1, 2, 3, 4}. Then the number of elements in the set C = {f : A

\to

B | 2

\in

f(A) and f is not one-one} is ______.

Your answerType your answer. Integers and decimals are accepted.