Question

A sweetmeat seller has 20 kg of sweets to sell. At the end of the day he could sell only 80% of his sweets and the balance sweet had to be thrown away if he still made a profit of 16% calculate the percentage increase in rate at which he sold his sweets​

Answer 1

Answer:

45 %  increase in rate at which he sold his sweets

step by step explanation:

20 kilogram of sweets to sell.

Let say cost price per kg  = C  

Total Cost Price = 20C

Let say Selling price per kg = S

At the end of the day he could sell only 80% of his sweet

=> Sweets sold = (80/100) * 20  = 16 kg

=> Total Selling Price = 16S

Profit = 16S -  20C

Profit %  =  ((16S - 20C)/20C )  * 100 = 16

=> 80S - 100C  = 16C

=> 80S = 116C

=> S = 116C/80

=> S = 29C/20

Increase in rate = 29C/20 - C  =  9C/20

% increase in rate  = ((9C/20)/C ) * 100 =  45 %

45 %  increase in rate at which he sold his sweets ​

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