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Question (1)

QN009209

Brahmagupta used the term Ṛiṇa to represent:

(A) Profit
(B) Wealth
(C) Debt
(D) Trade

Correct Answer: C

Explanation:

Ṛiṇa was used by Brahmagupta to represent debt or negative quantity.

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Question (2)

QN009210

Which of the following correctly represents the set of integers?

(A) {1, 2, 3, …}
(B) {0, 1, 2, 3, …}
(C) {…, –2, –1, 0, 1, 2, …}
(D) {1/2, 1/3, 1/4, …}

Correct Answer: C

Explanation:

Integers include negative numbers, zero, and positive numbers.

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Question (3)

QN009211

The symbol Z for integers comes from the German word:

(A) Zenith
(B) Zahlen
(C) Zeno
(D) Zero

Correct Answer: B

Explanation:

Z comes from the German word “Zahlen” meaning numbers.

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Question (4)

QN009212

According to Brahmagupta’s laws, the product of two debts is:

(A) Zero
(B) A debt
(C) A fortune
(D) Undefined

Correct Answer: C

Explanation:

Product of two negative integers is positive.

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Question (5)

QN009213

Which of the following statements is true?

(A) Negative integers lie to the right of zero.
(B) Positive integers lie to the left of zero.
(C) Zero lies between positive and negative integers.
(D) Zero is the greatest integer.

Correct Answer: C

Explanation:

Zero separates positive and negative integers on the number line.

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Question (6)

QN009214

A number line shows –5 at one point. Moving 8 units to the right gives:

(A) –13
(B) –3
(C) 3
(D) 13

Correct Answer: C

Explanation:

–5 + 8 = 3

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Question (7)

QN009215

A trader has a debt of ₹450. He earns ₹700 and later loses ₹200. His final financial status is:

(A) ₹50 debt
(B) ₹50 fortune
(C) ₹450 fortune
(D) ₹950 debt

Correct Answer: B

Explanation:

–450 + 700 – 200 = 50

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Question (8)

QN009216

Evaluate: (–18) + (–12)

(A) 30
(B) –30
(C) –6
(D) 6

Correct Answer: B

Explanation:

Sum of two negative integers is negative.

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Question (9)

QN009217

Evaluate: (–15) – (–9)

(A) –24
(B) 24
(C) –6
(D) 6

Correct Answer: C

Explanation:

–15 + 9 = –6

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Question (10)

QN009218

The temperature at dawn was –7°C. It rose by 11°C in the afternoon. The new temperature became:

(A) –18°C
(B) –4°C
(C) 4°C
(D) 18°C

Correct Answer: C

Explanation:

–7 + 11 = 4

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Question (1)

Brahmagupta used the term Ṛiṇa to represent:

Explanation:

Link:

Question (2)

Which of the following correctly represents the set of integers?

Explanation:

Link:

Question (3)

The symbol Z for integers comes from the German word:

Explanation:

Link:

Question (4)

According to Brahmagupta’s laws, the product of two debts is:

Explanation:

Link:

Question (5)

Which of the following statements is true?

Explanation:

Link:

Question (6)

A number line shows –5 at one point. Moving 8 units to the right gives:

Explanation:

Link:

Question (7)

A trader has a debt of ₹450. He earns ₹700 and later loses ₹200. His final financial status is:

Explanation:

Link:

Question (8)

Evaluate: (–18) + (–12)

Explanation:

Link:

Question (9)

Evaluate: (–15) – (–9)

Explanation:

Link:

Question (10)

The temperature at dawn was –7°C. It rose by 11°C in the afternoon. The new temperature became:

Explanation:

Link:

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