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The students of a school decided to beautify the school on the Annual Day by fixing colourful flags on the straight passage of the school. They have 27

flags to be fixed at intervals of every 2 m. The flags are stored at the position of the middle most flag. Ruchi was given the responsibility of placing the flags. Ruchi kept her books where the flags were stored. She could carry only one flag at a time. How much distance did she cover in completing this job and returning back to collect her books? What is the maximum distance she travelled carrying a flag? (How to solve such questions)

The middle most flag has 13 flags to the right and 13 flags to the left, then, The total distance she travels is 2 * ( 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 + 22 + 24 + 26) = ? The sum of the even integers is n(n+1), our n is 13, then Total distance = 2 * (13(13+1)) = 364 Ruchi traveled a distance of 364 m Ruchi traveled a maximum distance of 13 * 2 = 26 m

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The total distance she travels is 2 * ( 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 + 22 + 24 + 26) = ? because The middle most flag has 13 flags to the right and 13 flags to the left

the sum of the even integers is n(n+1), our n is 13, then total distance =2 * (13(13+1)) = 364 : Ruchi traveled a distance = 364 m

Ruchi traveled a maximum distance of (13 * 2) = 26m