2026Q2(i)(b)Arithmetic Progression

NumericalModerate2 marks

2(i)

The fourth and seventh terms of an Arithmetic Progression (A.P.) are 60 and 114 respectively. Find the :

sum of its first 10 terms.

Topic: Arithmetic progression

Previous-year question practice database

Answer

Exam answer

S₁₀ = 870.

Explanation

S₁₀=10/2[2(6)+9(18)] =5(174)=870.

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