Discussion of Question with ID = 099 under Averages

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Question

The sales(in rupees) of a karyana store for five consecutive days is 1092, 1548, 4638, 3372, 984. What should be the sale on the sixth day so that the overall average sale is 2543?

A

Rs.3624.

B

Rs.3630.

C

Rs.3618.

D

Rs.3636.

Soln.
Ans: a

The total sale on first five days is 1092 + 1548 + 4638 + 3372 + 984 = 11634. Let the sale on 6th day be x. The average for 6 days is: 2543 = ${11634 + x}/6$ which gives x = $6 × 2543 - 11634$ = Rs. 3624.


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