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Question (31)

QN0016017

The sum of two consecutive numbers is always:

(A) Even
(B) Odd
(C) Prime
(D) Composite

Correct Answer: B

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Question (32)

QN0016018

Which of the following pairs consists of consecutive numbers?

(A) 25 and 27
(B) 31 and 32
(C) 18 and 20
(D) 45 and 47

Correct Answer: B

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Question (33)

QN0016019

The parity of the sum of 11 odd numbers is:

(A) Odd
(B) Even
(C) Prime
(D) Composite

Correct Answer: A

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Question (34)

QN0016020

The parity of the sum of 12 odd numbers is:

(A) Odd
(B) Even
(C) Prime
(D) Cannot be determined

Correct Answer: B

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Question (35)

QN0016021

Which statement is true?

(A) Adding any number of even numbers always gives an odd number.
(B) Adding an odd number of odd numbers gives an odd number.
(C) odd + odd = odd
(D) even + odd = even

Correct Answer: B

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Question (36)

QN0016022

If a grid has dimensions 55 × 81, the number of small squares is:

(A) Odd
(B) Even
(C) Prime
(D) Multiple of 10

Correct Answer: A

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Question (37)

QN0016023

If a grid has dimensions 84 × 125, the number of small squares is:

(A) Odd
(B) Even
(C) Prime
(D) Cannot be determined

Correct Answer: B

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Question (38)

QN0016024

Which of the following lists all odd numbers?

(A) 2n
(B) 2n + 2
(C) 2n − 1
(D) 4n

Correct Answer: C

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Question (39)

QN0016025

Which of the following is the 75th odd number?

(A) 149
(B) 150
(C) 151
(D) 152

Correct Answer: A

Explanation:

75th odd number = 2 × 75 − 1 = 149

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Question (40)

QN0016026

The idea of parity helps us mainly to:

(A) Find exact values quickly
(B) Determine whether numbers are even or odd without lengthy calculations
(C) Find square roots
(D) Measure area of figures

Correct Answer: B

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Question (31)

The sum of two consecutive numbers is always:

Explanation:

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Question (32)

Which of the following pairs consists of consecutive numbers?

Explanation:

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Question (33)

The parity of the sum of 11 odd numbers is:

Explanation:

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Question (34)

The parity of the sum of 12 odd numbers is:

Explanation:

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Question (35)

Which statement is true?

Explanation:

Link:

Question (36)

If a grid has dimensions 55 × 81, the number of small squares is:

Explanation:

Link:

Question (37)

If a grid has dimensions 84 × 125, the number of small squares is:

Explanation:

Link:

Question (38)

Which of the following lists all odd numbers?

Explanation:

Link:

Question (39)

Which of the following is the 75th odd number?

Explanation:

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Question (40)

The idea of parity helps us mainly to:

Explanation:

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