Asked by akshay_mehra07 | 25th Mar, 2009, 10:28: PM
Such a question involves calculations so it will be for more than 1 mark.
This question can be done by trial and error , which does take time. In case such a question is asked in the exam do it in the end once you have done other questions.
Answered by | 26th Mar, 2009, 12:12: PM
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