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i am going to write JEE in 2016 i am never able to solve all the problems given in books like M.L.Khanna ,R D Sharma objective etc. In case i am not able to figure out the solutions i try the problem myself and after that go through the solutions and then i do it again . because of which i lose 5-10 minutes of my time . Don t you think i cant afford to lose that much time.if you do please give any alternative solution to my problem