average mixture and alligation

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In the month of July of a certain year, the average daily expenditure of an organization was Rs.68. For the first 15 days of the month, the average daily expenditure was Rs.85 and for the last 17 days, Rs.51. Find the amount spent by the organizat...
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http://www.pagalguy.com/forums/quantitative-ability-and-di/time-speed-work-alligations-mixtures-problems-t-9280

www.raghavabbhi.com | My take on CAT: http://www.pagalguy.com/discussions/all-i-wanted-to-speak-about-cat-25002933/6315307
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In the month of July of a certain year, the average daily expenditure of an organization was Rs.68. For the first 15 days of the month, the average daily expenditure was Rs.85 and for the last 17 days, Rs.51. Find the amount spent by the organization on the 15th of the month.

Commenting on this post has been disabled by the moderator.