In the month of july of a certain year,the average daily expenditure of an organisation was RS 68. For first 15 days of the month,the average daily expenditure was Rs85 and for the last 17 days,Rs51. Find the amount spent by the organisation on the 15th of the month.
Avg daily expenditure = Rs 68 per day (Whole of July)
Avg Daily expenditure first 15 days = Rs 85 per day
Avg daily expenditure Last 17 days = Rs 51 per day .
July = 31 days ...
Total expenditure within 31 days = Rs 2108
Total expenditure within 32 days = Rs 2142
One day extra (out of July )
Now subtracting 2142 - 2108 gives 34 which is what??
Avg daily expenditure = Rs 68 per day (Whole of July)
Avg Daily expenditure first 15 days = Rs 85 per day
Avg daily expenditure Last 17 days = Rs 51 per day .
July = 31 days ...
Total expenditure within 31 days = Rs 2108
Total expenditure within 32 days = Rs 2142
One day extra (out of July )
Now subtracting 2142 - 2108 gives 34 which is what??