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Class 9 Mathematics Sequences and Progressions Arithmetic ProgressionExpert

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If (a_1=3) and (d=8), what is the value of (a_{14}-a_5)?

Answer and explanation

Correct answer: (72)

There are (9) gaps between (a_{14}) and (a_5), so the difference is (9\times8=72). Term differences can be found directly using (d).

Related tags

Sequences Progressions Arithmetic-Progression Difference-Of-Terms Arithmetic Progression Sequences And Progressions Mathematics Class 9 Mcq

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