# Unit Digit Questions and Answer Set 1

Hi students, welcome to **Amans Maths Blogs (AMB)**. On this post, you will get the **Unit Digit Question and Answer Set 1**. It will help you to practice the questions on the topics of maths as unit digits based questions of number system.

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**Unit Digit Questions and Answer: Ques No 1**

The units digit of (7^{95} – 3^{58}) is

**Options:**

A. 0

B. 6

C. 3

D. 4

**Answer: D**

**Unit Digit Questions and Answer: Ques No 2**

The unit digit of 287^{562581 }is

**Options:**

A. 7

B. 9

C. 3

D. 1

**Answer: A**

**Unit Digit Questions and Answer: Ques No 3**

The unit digit of 1^{6} + 2^{6} + 3^{6} + ….. + 20^{6} is

**Options:**

A. 0

B. 1

C. 2

D. 4

**Answer: A**

**Unit Digit Question and Answer: Ques No 4**

The unit digit of 634^{262} + 634^{263 }is

**Options:**

A. 0

B. 1

C. 2

D. 3

**Answer: A**

**Unit Digit Question and Answer: Ques No 5**

The unit digit of 6324^{1797} x 615^{316 }x 341^{476 }is

**Options:**

A. 1

B. 5

C. 7

D. 0

**Answer: D**

**Unit Digit Question and Answer: Ques No 6**

The unit digit of 7^{295} x 3^{158 }x 341^{476 }is

**Options:**

A. 2

B. 7

C. 6

D. 4

**Answer: B**

**Unit Digit Question and Answer: Ques No 7**

If the tens digit of positive integers x, y are 6, how many values of the tens digit of 2(x+y) can be there?

**Options:**

A. 2

B. 3

C. 4

D. 5

**Answer: C**

**Unit Digit Question and Answer: Ques No 8**

If a is a positive integer, and if the units digit of a^{2} is 9 and the units digit of (a+1)^{2} is 4, what is the units digit of (a+2)^{2} ?

**Options:**

A. 1

B. 3

C. 6

D. 5

**Answer: A**

**Unit Digit Question and Answer: Ques No 9**

If x is a positive integer, what is the units digit of (24)^{2x+1} x (33)^{x+1} x (17)^{x+2} x (9)^{2x} ?

**Options:**

A. 4

B. 6

C. 7

D. 8

**Answer: D**

**Unit Digit Question and Answer: Ques No 10**

x and y are integers. If the unit’s digit of x² is 9, and the unit’s digit of y² is 9 as well, which of the following CANNOT be (x−y)?

**Options:**

A. 4

B. 6

C. 10

D. 18

**Answer: D**