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Cost of one egg x 5 x 12
Cost of 15 eggs = 75 rupees
Cost of 1 egg = 75/15 = 5 rupees,
Cost of 5 dozens, i.e. 5 x 12 = 60 x 5 = 300
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Each dozen carries cost 75 rupees and are sold for
12 x 15 = 180 rupees
Each dozen carries cost 75 rupees and are sold for
12 x 15 = 180 rupees
profit = SP-CP
profit = 180-75 = 105 rupees
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From question CP/SP = 12/18 = 2/3
∴ Profit (%) = ( 3 - 2 ) / 2 x 100
From question CP/SP = 12/18 = 2/3
∴ Profit (%) = ( 3 - 2 ) / 2 x 100 = 50%
2nd Solution:
CP = 100/18 = 5.55 paisa
SP = 100/12 = 8.33 paisa
∴ Profit = (8.33-5.55)/5.55 x 100 = 50 %
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Let the CP be Rs. x , then SP be 0.96x
∴ 0.96x = 240
Let the CP be Rs. x , then SP be 0.96x
∴ 0.96x = 240
⇒ x = 250
Now the new SP = 250 X 1.1 = 275
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SP = 100/12 paise
Let's CP = x
SP = 0.8x = 100/12
∴ x = 10/(0.8x12) paise
Therefore, CP = 100/9.6 paise
SP = 100/12 paise
Let's CP = x
SP = 0.8x = 100/12
∴ x = 10/(0.8x12) paise
Therefore, CP = 100/9.6 paise
Thus the new SP (with 20% profit) = 100/9.6 X 1.2 = 100/8 paise
Hence, 8 apples can be purchased for Rs.1 to gain 20%