# Number System Aptitude Questions

Number System is an important topic in the Quantitative Aptitude section of Wipro Aptitude exam. The important topics under this section are Face value,  Place value, Various types of numbers, Divisibility rules followed by some formulas.

We have solved 20 questions of different levels corresponding to all the topics. It's always advisable to improve accuracy and speed so that you can attempt maximum no of questions within the limited time frame.   If you are already thorough with all the concepts of quantitative aptitude then move on to reasoning ability and verbal ability.

For your convenience, we have provided solutions. So, if your answer is incorrect you can see the correct answer and explanation for your convenience. All the best for your Exam!

Q1

Between two distinct rational numbers a and b, there exists another rational number which is

Level 1 Numbers Number Classification and Prime Numbers
A

$\frac{a}{2}$

B

$\frac{b}{2}$

C

$\frac{ab}{2}$

D

$\frac{a+b}{2}$

Q2

What is the sum of all natural numbers from 1 to 100?

Level 1 Numbers Number Classification and Prime Numbers
A

5050

B

6000

C

5000

D

5052

Q3

How many prime numbers are there between 100 to 200?

Level 1 Numbers Number Classification and Prime Numbers
A

21

B

20

C

16

D

11

Q4

The largest natural number, which exactly divides the product of any four consecutive natural numbers, is

Level 1 Numbers Number Classification and Prime Numbers
A

6

B

12

C

24

D

120

Q5

What is the place value of 5 in 3254710?

Level 1 Numbers Place value and Face value
A

5

B

10,000

C

50,000

D

54,710

Q6

The face value of $question in the number 453926 is Level 1 Numbers Place value and Face value A$a

B

$b C$c

D

\$d

Q7

The sum of the place values of 3 in the number 503535 is

Level 1 Numbers Place value and Face value
A

6

B

60

C

3030

D

3300

Q8

If (the place value of 5 in 15201)+(the place value of 6 in 2659)=7*___, then the number of the blank space is

Level 1 Numbers Place value and Face value
A

800

B

80

C

90

D

900

Q9

What is the unit digit in $7^{105}$?

Level 1 Numbers Units place of an exponent
A

1

B

5

C

7

D

9

Q10

What is the unit digit in the product $(3^{65}*6^{59}*7^{71})$?

Level 1 Numbers Units place of an exponent
A

1

B

2

C

4

D

6

Q11

The unit's digit of $13^{2003}$ is?

Level 1 Numbers Units place of an exponent
A

1

B

3

C

7

D

9

Q12

The digit in the unit's place of the number $123^{99}$ is

Level 1 Numbers Units place of an exponent
A

1

B

4

C

7

D

8

Q13

If the sum of two numbers is 14 and their difference is 10, find the product of these two numbers?

Level 1 Numbers Number Arithmetic Problems
A

18

B

20

C

24

D

22

Q14

414*?*7=127512

Level 1 Numbers Number Arithmetic Problems
A

36

B

40

C

44

D

48

E

None of these

Q15

The total number of integers between 200 and 400, each of which either begins with 3 or ends with 3 or both is

Level 1 Numbers Number Arithmetic Problems
A

10

B

100

C

110

D

120

Q16

If a and b are two numbers such that ab=0, then

Level 1 Numbers Number Arithmetic Problems
A

a=0 and b=0

B

a=0 or b=0 or both

C

a=0 and b≠0

D

b=0 and a≠0

Q17

If 11,109,999 is divided by 1111, then what is the remainder?

Level 1 Numbers Divisibility and Remainders
A

1098

B

1010

C

1110

D

1188

Q18

The smallest 4 digit number exactly divisible by 7 is

Level 1 Numbers Divisibility and Remainders
A

1001

B

1007

C

1101

D

1108

Q19

How many of the integers between 110 and 120 are prime numbers?

Level 1 Numbers Divisibility and Remainders
A

0

B

1

C

2

D

3

E

4

Q20

Let a number consisting of three digits have its middle digit equal to the sum of the other two digits.  Then it is a multiple of

Level 1 Numbers Divisibility and Remainders
A

10

B

11

C

18

D

50