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Which term of the arithmetic progression 21, 18, 15, … is −81?
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Find the 15th term of the arithmetic progression 7, 10, 13, …
Original Khojo Papers practice question — not from a past board paper.
Answer
49
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
a = 7 and d = 3, so a15 = a + 14d = 7 + 42 = 49.
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