An article is sold at 20% profit. If cost increased by 50tk and salling price increased by 30tk and the percentage profit decreased by 3 1/3% . Find the cost price?
Solution(By Examveda Team)
Let, the cost price is X Tk.At 20% profit,
The selling price = X+20% of X= X+X/5 =6X/5
When cost price is increased by Tk. 50
Then new cost price will be =(X+50) Tk.
And the selling price is also increased by Tk. 30,
So new selling price will be = (6X/5+30) Tk.
According to question, (6X/5+30)- (X+50)=(20%-10/3%)(X+50)
X = 850.
So, Cost price is Tk. 850.
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