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Question (21)

QN0010048

Which term of the sequence is 132?

(A) 10th
(B) 11th
(C) 12th
(D) 13th

Correct Answer: B

Explanation:

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Question (22)

QN0010049

A taxi fare follows the rule , where is the distance in km. What is the fare for 8 km?

(A) ₹480
(B) ₹500
(C) ₹520
(D) ₹540

Correct Answer: C

Explanation:

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Question (23)

QN0010050

The sequence generated by is called:

(A) square numbers
(B) even numbers
(C) triangular numbers
(D) prime numbers

Correct Answer: C

Explanation:

gives triangular numbers.

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Question (24)

QN0010051

If , then the 50th term is:

(A) 339
(B) 341
(C) 343
(D) 349

Correct Answer: B

Explanation:

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Question (25)

QN0010052

A student saves ₹15 more every week than the previous week. If the savings in week are given by , how much is saved in the 6th week?

(A) ₹110
(B) ₹115
(C) ₹120
(D) ₹125

Correct Answer: D

Explanation:

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Question (26)

QN0010053

Why must be a natural number in an explicit sequence formula?

(A) Because terms cannot be fractions
(B) Because represents the position of a term
(C) Because all sequences are increasing
(D) Because formulas work only for positive numbers

Correct Answer: B

Explanation:

denotes the position number of the term.

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