Chapter Quiz

Whole Numbers, Decimals and Fractions

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Question 1

Which of the following is NOT a natural number?

A. 1

B. 0

C. 7

D. 100

Question 2

The smallest whole number is:

A. 1

B. -1

C. 0

D. 2

Question 3

Which of the following is an irrational number?

A. √9

B. √4

C. √7

D. √25

Question 4

1 is which type of number?

A. Prime number

B. Composite number

C. Neither prime nor composite

D. Both prime and composite

Question 5

How many prime numbers are there between 1 and 100?

A. 20

B. 23

C. 25

D. 27

Question 6

Which is the only even prime number?

A. 4

B. 6

C. 2

D. 8

Question 7

Which of the following numbers is divisible by 11?

A. 1452

B. 1331

C. 1234

D. 5555

Question 8

A number is divisible by 6 if it is divisible by:

A. 2 and 4

B. 3 and 4

C. 2 and 3

D. 4 and 3

Question 9

What is the divisibility rule for 8?

A. Last digit divisible by 8

B. Last two digits divisible by 8

C. Last three digits divisible by 8

D. Sum of digits divisible by 8

Question 10

If N = 2³ × 3² × 5, how many total factors does N have?

A. 18

B. 20

C. 24

D. 30

Question 11

What is the sum of first 10 natural numbers?

A. 45

B. 50

C. 55

D. 60

Question 12

What is the sum of the first 8 odd numbers?

A. 56

B. 64

C. 72

D. 48

Question 13

Which property states that a × (b + c) = a×b + a×c?

A. Commutative property

B. Associative property

C. Distributive property

D. Closure property

Question 14

What is the value of 15 + 3 × 4 - 6 ÷ 2?

A. 30

B. 24

C. 18

D. 36

Question 15

Evaluate: [{(4 + 2) × 3} - 8] ÷ 2

A. 3

B. 5

C. 7

D. 4

Question 16

Which type of decimal is 0.333...?

A. Terminating decimal

B. Non-terminating non-recurring decimal

C. Non-terminating recurring decimal

D. Pure decimal

Question 17

Convert 0.27̄ (0.2777...) to a fraction.

A. 27/99

B. 5/18

C. 7/25

D. 3/11

Question 18

What is 0.9̄ (0.999...) equal to?

A. Less than 1

B. Exactly 1

C. More than 1

D. 9/10

Question 19

The value of 3.24 × 1.5 is:

A. 4.68

B. 4.86

C. 5.04

D. 4.98

Question 20

What is 4.86 ÷ 0.6?

A. 0.81

B. 8.1

C. 81

D. 0.081

Question 21

Which of the following is a terminating decimal?

A. 1/3

B. 1/7

C. 7/20

D. 5/6

Question 22

What is the value of 0.0072 ÷ 0.08?

A. 0.9

B. 0.09

C. 9

D. 0.009

Question 23

Which of the following is a proper fraction?

A. 7/5

B. 9/4

C. 5/5

D. 3/7

Question 24

Convert 2(3/4) to an improper fraction.

A. 9/4

B. 10/4

C. 11/4

D. 8/4

Question 25

Which fraction is greater: 5/8 or 7/11?

A. 5/8

B. 7/11

C. Both are equal

D. Cannot be determined

Question 26

What is 1/3 + 1/4 + 1/6?

A. 2/3

B. 3/4

C. 5/6

D. 7/12

Question 27

What is (3/5) ÷ (9/10)?

A. 27/50

B. 2/3

C. 3/2

D. 6/9

Question 28

The product of two fractions is 14/15. If one fraction is 7/6, find the other fraction.

A. 2/5

B. 4/5

C. 6/7

D. 3/5

Question 29

What is the value of (1-1/2)(1-1/3)(1-1/4)(1-1/5)?

A. 1/4

B. 1/5

C. 1/6

D. 1/3

Question 30

A fraction becomes 4/5 when 3 is added to both numerator and denominator. Find the original fraction.

A. 1/2

B. 3/4

C. 5/7

D. 7/8

Question 31

What is the value of √(7056)?

A. 82

B. 84

C. 86

D. 88

Question 32

Simplify √72.

A. 6√3

B. 6√2

C. 8√3

D. 9√2

Question 33

Rationalise the denominator: 1/(3 + √2)

A. (3 + √2)/7

B. (3 - √2)/7

C. (3 - √2)/11

D. (3 + √2)/11

Question 34

If x + 1/x = 5, find x² + 1/x².

A. 21

B. 23

C. 25

D. 27

Question 35

If x - 1/x = 4, find x² + 1/x².

A. 14

B. 16

C. 18

D. 20

Question 36

Which surd is greater: √3 or ∛4?

A. √3

B. ∛4

C. Both are equal

D. Cannot be determined

Question 37

If x + 1/x = 3, find x³ + 1/x³.

A. 18

B. 24

C. 27

D. 21

Question 38

Find √(6 + √(6 + √(6 + ...∞)))

A. 2

B. 3

C. 4

D. 6

Question 39

If 1.5x = 0.04y, find (y - x)/(y + x).

A. 73/77

B. 71/75

C. 3/4

D. 7/9

Question 40

Simplify: (0.6)³ - (0.2)³ / [(0.6)² + 0.6×0.2 + (0.2)²]

A. 0.2

B. 0.4

C. 0.6

D. 0.8

Question 41

What decimal fraction of an hour is 45 minutes?

A. 0.45

B. 0.70

C. 0.75

D. 0.80

Question 42

What is the value of 1/(1×2) + 1/(2×3) + 1/(3×4) + ... + 1/(9×10)?

A. 8/9

B. 9/10

C. 10/11

D. 1

Question 43

The value of √(0.0169 × x) = 1.3. Find x.

A. 10

B. 100

C. 1000

D. 10000

Question 44

If x² + 1/x² = 7, find the value of x + 1/x (taking positive value).

A. 2

B. 3

C. √7

D. √11

Question 45

Which of the following numbers is divisible by 25?

A. 1275

B. 1340

C. 1430

D. 1720

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