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In the month of July of a certain year, ...

In the month of July of a certain year, the average daily expenditure of an organisation was 68. For the first 15 days of the month, the average daily expendiutre was 85 and for the last 17 days, 51. Find the amount spent by the organisation on the 15th of the month.

A

42

B

36

C

34

D

52

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The correct Answer is:
C
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