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Question (11)

QN0018930

Consider the expression 3 + 4 – 5 + 6. Its value is:

(A) 6
(B) 7
(C) 8
(D) 9

Correct Answer: C

Explanation:

3 + 4 – 5 + 6 = 8.

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Question (12)

QN0018931

Consider the expression 3 – 4 – 5 – 6. Its value is:

(A) –10
(B) –12
(C) –14
(D) –16

Correct Answer: B

Explanation:

3 – 4 – 5 – 6 = –12.

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Question (13)

QN0018932

How many different expressions can be formed by placing ‘+’ and ‘–’ signs between four consecutive numbers?

(A) 4
(B) 6
(C) 8
(D) 16

Correct Answer: C

Explanation:

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Question (14)

QN0018933

When four consecutive numbers are combined using any arrangement of ‘+’ and ‘–’ signs, the result is always:

(A) Odd
(B) Prime
(C) Even
(D) Multiple of 3

Correct Answer: C

Explanation:

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Question (15)

QN0018934

Which of the following is an even number?

(A) –5
(B) –7
(C) –8
(D) –9

Correct Answer: C

Explanation:

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Question (16)

QN0018935

If two numbers differ by an even number, then they must have:

(A) Different parity
(B) Same parity
(C) Opposite signs
(D) Same value

Correct Answer: B

Explanation:

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Question (17)

QN0018936

Which rule is correct?

(A) Odd + Odd = Odd
(B) Even + Even = Odd
(C) Odd + Even = Odd
(D) Odd – Odd = Odd

Correct Answer: C

Explanation:

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Question (18)

QN0018937

The expression 4m + 2q is always:

(A) Odd
(B) Prime
(C) Even
(D) Multiple of 3

Correct Answer: C

Explanation:

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Question (19)

QN0018938

Which expression always gives an even number for all integers?

(A) 3g + 5h
(B) 4m + 2n
(C) x² + 2
(D) 6m – 3n

Correct Answer: B

Explanation:

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Question (20)

QN0018939

The expression 13k – 5k simplifies to:

(A) 8k
(B) 18k
(C) 10k
(D) 12k

Correct Answer: A

Explanation:

13k – 5k = 8k.

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