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Start from the end of the paper as the questions there contain more marks. Don't spend too much time on one sum...if the answer is not coming, leave it and move on to the next one. Never strike off any answer even if you think it is incorrect. Complete the paper before time say 15 mins...then you will get time to check and recheck your paper. Always carry a wàtch to the examination. Never spend more than 2 to 3 mins in one sum. All The Very Best!! Hope i helped...plz mark as best..tnx :) PS..write fast!!