Amithab's average expenditure for the January to June is Rs. 4200 and he spends Rs.1200 in January and Rs.1500 in july.The average expenditure for the months of febraury to July is:

Rs. 4250
Rs. 4520
Rs. 4060
None of these

Correct Answer: Rs. 4250

Explanation:

Amithab's total expenditure for Jan - June = 4200 x 6 = 25200

Expenditure for Feb - June = 25200-1200 = 24000

Expenditure for the months of Feb - July = 24000 + 1500 =25500

The average expenditure = 25500/6 = 4250

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