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ICSE Class 7 Answered

ronak rode on a roller coaster. he was at an elevation of 55m above the mean sea level when he started the ride. During the ride the elevation changes as 412m, -125m, 272m, -343m, 490m, -640m and 50m. What is his elevation relative to the mean sea level at the end of the ride?
Asked by sharmiroyr | 28 Apr, 2019, 09:54: PM
answered-by-expert Expert Answer
Mean space sea space level equals fraction numerator 55 plus 412 minus 125 plus 272 minus 343 plus 490 minus 640 plus 50 over denominator 8 end fraction equals 171 over 8 equals 21.375 space straight m space above space the space sea space level at space the space end space the space height space was space 50 straight m relative space elevation space equals space 50 minus 21.375 equals 28.625 space straight m
Answered by Arun | 02 May, 2019, 10:26: AM

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