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Question (21)

QN0015052

Round 45,149 to the nearest hundred.

(A) 45,000
(B) 45,100
(C) 45,200
(D) 45,500

Correct Answer: B

Explanation:

Since 49 < 50, round down.

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Question (22)

QN0015053

Which of the following is most suitable for approximation?

(A) Counting votes in an election
(B) Counting books in a library
(C) Estimating the population of a large city
(D) Counting students in a classroom

Correct Answer: C

Explanation:

Large populations are often estimated.

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Question (23)

QN0015054

A town has a population of 4,92,130. Approximately how many lakh people live there?

(A) 4 lakh
(B) 5 lakh
(C) 6 lakh
(D) 4.5 lakh

Correct Answer: B

Explanation:

4,92,130 ≈ 5,00,000.

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Question (24)

QN0015055

Estimate 3,48,200 + 6,51,700 by rounding each number to the nearest lakh.

(A) 9,00,000
(B) 10,00,000
(C) 11,00,000
(D) 8,00,000

Correct Answer: B

Explanation:

3,00,000 + 7,00,000 = 10,00,000.

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Question (25)

QN0015056

The exact product of 125 × 8 is:

(A) 1000
(B) 900
(C) 1100
(D) 1200

Correct Answer: A

Explanation:

125 × 8 = 1000.

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Question (26)

QN0015057

An approximate value of 198 × 49 can be found using:

(A) 200 × 50
(B) 190 × 40
(C) 180 × 50
(D) 210 × 60

Correct Answer: A

Explanation:

Round to nearby easy numbers.

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Question (27)

QN0015058

Estimate 198 × 49.

(A) 10,000
(B) 9,000
(C) 8,000
(D) 12,000

Correct Answer: A

Explanation:

200 × 50 = 10,000.

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Question (28)

QN0015059

Which is the exact value among the following?

(A) About 2500 people attended the event
(B) Nearly 8 km long road
(C) 2473 people attended the event
(D) Approximately 6 lakh trees

Correct Answer: C

Explanation:

Exact count is 2473.

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Question (29)

QN0015060

If 5,48,900 is rounded to the nearest ten thousand, the result is:

(A) 5,40,000
(B) 5,50,000
(C) 5,00,000
(D) 6,00,000

Correct Answer: B

Explanation:

Since 8,900 ≥ 5,000, round up.

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Question (30)

QN0015061

If 2,44,999 is rounded to the nearest lakh, the result is:

(A) 2,00,000
(B) 3,00,000
(C) 2,50,000
(D) 2,40,000

Correct Answer: A

Explanation:

Since 44,999 < 50,000, round down.

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Question (21)

Round 45,149 to the nearest hundred.

Explanation:

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Question (22)

Which of the following is most suitable for approximation?

Explanation:

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Question (23)

A town has a population of 4,92,130. Approximately how many lakh people live there?

Explanation:

Link:

Question (24)

Estimate 3,48,200 + 6,51,700 by rounding each number to the nearest lakh.

Explanation:

Link:

Question (25)

The exact product of 125 × 8 is:

Explanation:

Link:

Question (26)

An approximate value of 198 × 49 can be found using:

Explanation:

Link:

Question (27)

Estimate 198 × 49.

Explanation:

Link:

Question (28)

Which is the exact value among the following?

Explanation:

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Question (29)

If 5,48,900 is rounded to the nearest ten thousand, the result is:

Explanation:

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Question (30)

If 2,44,999 is rounded to the nearest lakh, the result is:

Explanation:

Link:

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