A store has five shelves and average weekly sale is Tk. 30000. Shelf 1 accounted for 1/4 of the store's average weekly sales and shelves 2 and 3 each accounted for 2/3 as much as shelf 1. The shelf 4 alone accounted for as much as shelf 1, then which of the following could have been the average weekly sales of shelf 5 for the store?

Correct Answer: Tk. 500
Shelves 2 and 3 each accounted for 14×23 = 16 of the stores average wekly sales. ∴ 1,2,3,4 সেলফের মোট বিক্রয় = 14 + 16 + 16 + 14 = 3 + 2 + 2 + 312 = 1012 মোট বিক্রয়ের 56 অংশ Weekly sales of shelf 5 = 1 - 56 = 16 অংশ মোট বিক্রয়ের 16 অংশ = 30,000×16 = 5,000 Taka.