all answers of pg 7-12 in the elevate learning for life mathematics student workbook

please sent anwers of work book class seven

1. there were some cadets in an NCC camp. 1/3rd of the students went for flat foot march,3/4th of the students of 'flat foot march'went to 'style march' ,1/6th of the total cadets went for swimming, remaining 30 students of the camp went for running.
(i)how many students went to 'style march'?
(ii)two hours later some students left the 'style march' and four times of them flat foot march, and all of them joined swimming. due to which total students in swimming zone got seven times in number. how many students left 'style march'.

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ABC is a parallelogram the circle through ABC intersection cd at e if ab equal to 10cm bc equal to 8cm ce equal to14 find ae