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Question (11)

QN0019282

The simplest form of 48 : 64 is:

(A) 4 : 3
(B) 3 : 4
(C) 2 : 3
(D) 1 : 2

Correct Answer: B

Explanation:

Divide both terms by 16.

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Question (12)

QN0019283

The HCF of 48 and 64 is:

(A) 8
(B) 12
(C) 16
(D) 24

Correct Answer: C

Explanation:

The HCF of 48 and 64 is 16.

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Question (13)

QN0019284

The simplest form of 84 : 56 is:

(A) 2 : 3
(B) 3 : 2
(C) 4 : 5
(D) 5 : 7

Correct Answer: B

Explanation:

Divide both terms by 28.

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Question (14)

QN0019285

Which ratio is equivalent to 3 : 2?

(A) 18 : 12
(B) 20 : 15
(C) 16 : 14
(D) 24 : 20

Correct Answer: A

Explanation:

18 : 12 simplifies to 3 : 2.

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Question (15)

QN0019286

The simplest form of 45 : 75 is:

(A) 3 : 5
(B) 5 : 3
(C) 9 : 15
(D) 15 : 25

Correct Answer: A

Explanation:

Divide both terms by 15.

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Question (16)

QN0019287

The HCF of 45 and 75 is:

(A) 5
(B) 10
(C) 15
(D) 25

Correct Answer: C

Explanation:

The HCF of 45 and 75 is 15.

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Question (17)

QN0019288

Which of the following ratios reduces to 2 : 5?

(A) 12 : 25
(B) 8 : 20
(C) 10 : 40
(D) 18 : 45

Correct Answer: B

Explanation:

8 : 20 simplifies to 2 : 5.

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Question (18)

QN0019289

The ratio 63 : 84 in simplest form is:

(A) 4 : 3
(B) 3 : 4
(C) 7 : 8
(D) 5 : 6

Correct Answer: B

Explanation:

Divide both terms by 21.

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Question (19)

QN0019290

The HCF of 63 and 84 is:

(A) 7
(B) 14
(C) 21
(D) 28

Correct Answer: C

Explanation:

The HCF of 63 and 84 is 21.

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Question (20)

QN0019291

Which ratio is NOT in simplest form?

(A) 5 : 8
(B) 9 : 14
(C) 11 : 13
(D) 16 : 20

Correct Answer: D

Explanation:

16 : 20 can be simplified to 4 : 5.

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