Neco 2020 Further Mathematics Question 35

Practice objective / multiple choice question 35 from the 2020 Neco Further Mathematics examination.

Neco 2020 Further Mathematics Objective / Multiple Choice Easy Difficulty

Question 35 NECO • 2020 • FURTHER_MATHEMATICS • objective

Let \(A=\{1,2,3,4,5\}\). Define a binary operation \(\) on \(A\) by \(a b = (a+b)\bmod 5\), where a result of 0 is written as 5. Determine the identity element \(e\) for this operation and compute \(3 * e\).

A. Identity e = 3; 3 * e = 1

Correct Answer B. Identity e = 5; 3 * e = 3

C. Identity e = 2; 3 * e = 5

D. Identity e = 1; 3 * e = 4

Correct Answer

Correct Option:

Identity e = 5; 3 * e = 3

This is Neco 2020 Further Mathematics Question 35. It is one of the objective questions from the 2020 Neco Further Mathematics examination.

Difficulty level: Easy .

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