Question

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A fruitseller buys apples at the rate of 4 for 10 and sells them at the rate of 9 for 21. Find his loss or gain% 6. Aftab buys one dozen pens for 7 54 and sells them at the rate of 6 for 30. Find his loss or gain%Questions
A fruitseller buys apples at the rate of 4 for 10 and sells them at the rate of 9 for 21. Find his loss or gain% 6. Aftab buys one dozen pens for 7 54 and sells them at the rate of 6 for 30. Find his loss or gain%.

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Answer 1

Answer:

A fruitseller buys apples at the rate of 4 for 10 and sells them at the rate of 9 for 21. Find his loss or gain% 6. Aftab buys one dozen pens for 7 54 and sells them at the rate of 6 for 30. Find his loss or gain%

Answer 2

Answer:

Cost of N no of oranges at the rate 4 for Rs 10 = (N/4)×10

Cost of N no of oranges at the rate 5 for Rs 10 = (N/5)×10

Cost of N+N = 2N orànges =10×(N/4+N/5)=9N/2 = 4.5N

Selling price of 2N oranges = 20×(2N/9) = 4.444N

Loss = (9N/2) –(40N/9)= N(81–80)/18 = (1/18)N

Cost 4.5 N , loss = (1/18)N

%of loss = {(N/18)/4.5N}× 100 = 100/81= 1.2345679%