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Question (11)

QN0026656

Which term of the AP 6, 10, 14, 18, … is 58?

(A) 12th
(B) 13th
(C) 14th
(D) 15th

Correct Answer: C

Explanation:

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Question (12)

QN0026657

The 5th term of the GP 2, –6, 18, –54, … is:

(A) 162
(B) –162
(C) 486
(D) –486

Correct Answer: A

Explanation:

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Question (13)

QN0026658

The formula is used to find:

(A) sum of natural numbers
(B) nth term of an AP
(C) nth term of a GP
(D) common ratio

Correct Answer: B

Explanation:

It gives the nth term of an AP.

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Question (14)

QN0026659

Find the sum of the first 35 natural numbers.

(A) 595
(B) 610
(C) 630
(D) 640

Correct Answer: C

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Question (15)

QN0026660

Which of the following sequences decreases geometrically?

(A) 81, 27, 9, 3, …
(B) 20, 15, 10, 5, …
(C) 1, 4, 9, 16, …
(D) 5, 8, 11, 14, …

Correct Answer: A

Explanation:

Each term is divided by 3.

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Question (16)

QN0026661

The 9th term of the AP 2, 7, 12, 17, … is:

(A) 37
(B) 40
(C) 42
(D) 45

Correct Answer: C

Explanation:

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Question (17)

QN0026662

Find the 7th term of the GP 5, 10, 20, 40, …

(A) 160
(B) 240
(C) 320
(D) 640

Correct Answer: C

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Question (18)

QN0026663

Which of the following statements is true?

(A) Every AP is a GP
(B) Every GP is an AP
(C) A constant sequence can be both AP and GP
(D) No sequence can be both AP and GP

Correct Answer: C

Explanation:

Constant sequence satisfies both conditions.

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Question (19)

QN0026664

A student saves ₹50 on the first day, ₹100 on the second day, ₹150 on the third day, and so on. This pattern forms:

(A) geometric progression
(B) arithmetic progression
(C) square sequence
(D) Fibonacci sequence

Correct Answer: B

Explanation:

Savings increase by ₹50 each day.

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Question (20)

QN0026665

Find the sum of the first 45 natural numbers.

(A) 990
(B) 1015
(C) 1035
(D) 1045

Correct Answer: C

Explanation:

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Question (11)

Which term of the AP 6, 10, 14, 18, … is 58?

Explanation:

Link:

Question (12)

The 5th term of the GP 2, –6, 18, –54, … is:

Explanation:

Link:

Question (13)

The formula is used to find:

Explanation:

Link:

Question (14)

Find the sum of the first 35 natural numbers.

Explanation:

Link:

Question (15)

Which of the following sequences decreases geometrically?

Explanation:

Link:

Question (16)

The 9th term of the AP 2, 7, 12, 17, … is:

Explanation:

Link:

Question (17)

Find the 7th term of the GP 5, 10, 20, 40, …

Explanation:

Link:

Question (18)

Which of the following statements is true?

Explanation:

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Question (19)

A student saves ₹50 on the first day, ₹100 on the second day, ₹150 on the third day, and so on. This pattern forms:

Explanation:

Link:

Question (20)

Find the sum of the first 45 natural numbers.

Explanation:

Link:

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