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CHAPTER AT A GLANCE
Arithmetic Progressions
•Unit: Algebra
•Board weightage: Algebra carries about 20 marks out of 80; this chapter usually gives one 3-mark or 4-mark question and some short questions (please check the latest sample paper)
•Two formulas decide everything: the nth term and the sum of the first n terms
•Most scoring part: finding n, the sum of the first n terms, and real-life situations
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