Answers

2015-08-22T22:59:41+05:30
He used 2/9 of 360=80 bags on monday.on tuesday he used 2/7 of remaining bags i.e. 2/7 of 280 bags =80 bags .so on wednesday he is left with 280-80=200 bags.
ans is 200 bags

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2015-08-25T19:37:40+05:30
On tuesday he used 80kg(360x2/9).  The remaining is 280kg.on wednesday he used 80kg(2/7x280). The remaining is 200kg.
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