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Q.

A grocer has a sale of Rs. 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 6500?

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a

Rs.5991 

b

Rs. 6991 

c

Rs. 4991 

d

Rs. 6001

answer is A.

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Detailed Solution

Explanation:

The total sales for the first 5 months are Rs. 6435, Rs. 6927, Rs. 6855, Rs. 7230, and Rs. 6562, which sum to Rs. 34,909.

To achieve an average of Rs. 6500 over 6 months, the total sales for 6 months must be Rs. 39,000 (6500 * 6).

Therefore, the sale needed in the sixth month is Rs. 39,000 - Rs. 34,909 = Rs. 4991.

So, the correct answer is Rs. 4991.

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A grocer has a sale of Rs. 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 6500?