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The 5th and 12th terms of an AP are 14 and 35 respectively. Find the 20th term.

Set up two equations, solve for a and d, then compute the 20th term.

Class 10nth Term of an APAlgebra — Sequences
  • A59
  • B56
  • C62
  • D53

Step-by-Step Solution

and . Subtract: , then .
Answer: A) 59

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