Hello Paresh - I am not sure if this a GMAT type question. I stumbled on this type of question in 500 L question set and I have a doubt regarding the method they showed in the post (mentioned in my question). There is not an OA as this question was made up. Anyhow, the answer is 61.
p.s: Also, may I know why this question is re-tagged as General Math questions when I posted it in Problem Solving section? This is the second time I have re-posted the question under PS and it somehow got tagged otherwise. Please correct me if I am missing something.
OK; if the question is re-tagged in "General Math questions", means its not a GMAT question. ( I believe)
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