Target Exam

CUET

Subject

-- Applied Mathematics - Section B2

Chapter

Numbers, Quantification and Numerical Applications

Question:

The last digit of $(12)^{12}$ is :

A. 8

B. 6

C. multiple of 4

D. divisible by 2

E. 4

Choose the correct answer from the options given below :

Options:

B and D only

A and C only

A and B only

C and D only

Correct Answer:

B and D only

Explanation:

The correct answer is Option (1) → B and D only

$2^0=1$

$2^1=2$

$2^2=4$

$2^3=8$

$2^4=16$

$2^5=32$

$∴(12)^{12}=((12)^4)^3$

∴ Unit digit = 6 which is divisible by 2.