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Question (31)

QN0015379

A playground is 120 m long. Its length in kilometres is:

(A) 0.12 km
(B) 1.2 km
(C) 12 km
(D) 1200 km

Correct Answer: A

Explanation:

120 ÷ 1000 = 0.12 km.

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Question (32)

QN0015380

Which measurement is most appropriate for the diameter of a button?

(A) Kilometre
(B) Metre
(C) Centimetre
(D) Gigametre

Correct Answer: C

Explanation:

A button's diameter is measured in centimetres.

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Question (33)

QN0015381

Convert 3.06 m into centimetres.

(A) 30.6 cm
(B) 306 cm
(C) 3006 cm
(D) 3.06 cm

Correct Answer: B

Explanation:

3.06 × 100 = 306 cm.

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Question (34)

QN0015382

Which is greater?

(A) 4.2 m
(B) 420 cm
(C) Both are equal
(D) Cannot be compared

Correct Answer: C

Explanation:

4.2 m = 420 cm.

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Question (35)

QN0015383

Ancient Indian builders and surveyors used measurement systems mainly for:

(A) Music only
(B) Construction and land measurement
(C) Painting only
(D) Writing stories

Correct Answer: B

Explanation:

Measurement systems were important in construction and surveying.

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Question (36)

QN0015384

Standard units are important because they:

(A) Create confusion
(B) Give different answers everywhere
(C) Ensure uniform measurements
(D) Replace numbers

Correct Answer: C

Explanation:

Standard units provide consistency and accuracy.

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Question (37)

QN0015385

A tailor measures cloth as 2.85 m. The measurement uses decimal units because:

(A) It allows greater precision
(B) It avoids measurement
(C) It increases the cloth length
(D) It removes units

Correct Answer: A

Explanation:

Decimals help express measurements accurately.

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Question (38)

QN0015386

Convert 960 cm into metres and centimetres.

(A) 9 m 6 cm
(B) 96 m 0 cm
(C) 9 m 60 cm
(D) 96 m 60 cm

Correct Answer: C

Explanation:

960 cm = 9 m 60 cm.

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Question (39)

QN0015387

Which of the following lengths is the shortest?

(A) 0.9 m
(B) 95 cm
(C) 850 mm
(D) 0.001 km

Correct Answer: C

Explanation:

850 mm = 85 cm, which is the shortest.

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Question (40)

QN0015388

A science student measures a leaf as 72 mm long. Why is millimetre a suitable unit?

(A) The leaf is extremely large
(B) Small objects require finer measurement units
(C) Kilometres are unavailable
(D) Metres cannot measure length

Correct Answer: B

Explanation:

Millimetres provide precise measurements for small objects.

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Question (31)

A playground is 120 m long. Its length in kilometres is:

Explanation:

Link:

Question (32)

Which measurement is most appropriate for the diameter of a button?

Explanation:

Link:

Question (33)

Convert 3.06 m into centimetres.

Explanation:

Link:

Question (34)

Which is greater?

Explanation:

Link:

Question (35)

Ancient Indian builders and surveyors used measurement systems mainly for:

Explanation:

Link:

Question (36)

Standard units are important because they:

Explanation:

Link:

Question (37)

A tailor measures cloth as 2.85 m. The measurement uses decimal units because:

Explanation:

Link:

Question (38)

Convert 960 cm into metres and centimetres.

Explanation:

Link:

Question (39)

Which of the following lengths is the shortest?

Explanation:

Link:

Question (40)

A science student measures a leaf as 72 mm long. Why is millimetre a suitable unit?

Explanation:

Link:

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