Same chapter3 marksDifficulty: Medium
The 2nd term of a geometric progression is 3 and the 5th term is 81. Find the first term and the common ratio.
Arithmetic and Geometric Progression
3 marksDifficulty: Medium
A man saves ₹200 in the first month and ₹50 more in each following month. Find his total saving in one year.
Original Khojo Papers practice question — not from a past board paper.
Answer
₹5,700
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The savings form an arithmetic progression with a = 200 and d = 50. S12 = 12/2 × [400 + 11 × 50] = 6 × 950 = ₹5,700.
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