Same chapter3 marksDifficulty: Medium
A man saves ₹200 in the first month and ₹50 more in each following month. Find his total saving in one year.
Arithmetic and Geometric Progression
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The 4th term of an arithmetic progression is 11 and the 9th term is 26. Find the first term and the common difference.
Original Khojo Papers practice question — not from a past board paper.
Answer
a = 2 and d = 3
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
a + 3d = 11 and a + 8d = 26. Subtracting gives 5d = 15, so d = 3 and a = 11 − 9 = 2.
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