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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsHard
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In a matchstick pattern the first figure has (12) matchsticks and each next figure has (7) more matchsticks. How many matchsticks are in the (18)th figure?

Answer and explanation

Correct answer: (131)

The matchstick numbers are (12,19,26,\ldots), and (a_{18}=131). Exam tip: take the figure number as the term number.

Related tags

ApWord-ProblemMatchstickWord Problems Based On ApsArithmetic Progressions (Ap)Arithmetic Progressions ApMathematicsClass 10 Mcq
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