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Question (11)

QN0018610

Which decimal number is represented by 101₂?

(A) 4
(B) 5
(C) 6
(D) 7

Correct Answer: B

Explanation:

101₂ = 4 + 1 = 5.

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Question (12)

QN0018611

Which decimal number is represented by 110₂?

(A) 4
(B) 5
(C) 6
(D) 7

Correct Answer: C

Explanation:

110₂ = 4 + 2 = 6.

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Question (13)

QN0018612

What is the decimal value of 111₂?

(A) 5
(B) 6
(C) 7
(D) 8

Correct Answer: C

Explanation:

111₂ = 4 + 2 + 1 = 7.

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Question (14)

QN0018613

Which binary number represents decimal 8?

(A) 1000₂
(B) 1010₂
(C) 1100₂
(D) 1111₂

Correct Answer: A

Explanation:

1000₂ = 8.

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Question (15)

QN0018614

What is the decimal value of 1001₂?

(A) 7
(B) 8
(C) 9
(D) 10

Correct Answer: C

Explanation:

1001₂ = 8 + 1 = 9.

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Question (16)

QN0018615

Which decimal number is represented by 1011₂?

(A) 9
(B) 10
(C) 11
(D) 12

Correct Answer: C

Explanation:

1011₂ = 8 + 2 + 1 = 11.

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Question (17)

QN0018616

Convert decimal 13 into binary.

(A) 1011₂
(B) 1101₂
(C) 1110₂
(D) 1001₂

Correct Answer: B

Explanation:

13 = 8 + 4 + 1 = 1101₂.

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Question (18)

QN0018617

Convert decimal 15 into binary.

(A) 1111₂
(B) 1011₂
(C) 1101₂
(D) 1001₂

Correct Answer: A

Explanation:

15 = 8 + 4 + 2 + 1.

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Question (19)

QN0018618

Which expression represents 10101₂ in decimal form?

(A) 16 + 4 + 1
(B) 16 + 8 + 1
(C) 8 + 4 + 1
(D) 16 + 2 + 1

Correct Answer: A

Explanation:

10101₂ = 16 + 4 + 1.

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Question (20)

QN0018619

What is the decimal value of 10101₂?

(A) 19
(B) 20
(C) 21
(D) 22

Correct Answer: C

Explanation:

16 + 4 + 1 = 21.

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