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In a book donation drive (12) books are received on the first day and (6) more books are received each next day. On which day will (72) books be received?

Answer and explanation

Correct answer: (11)

From (12+(n-1)6=72), (n=11). Exam tip: set (a_n) equal to the given number to find the required day.

Related tags

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

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