A man bought aplles at the rate of 8 for rs 34 and sold them at the rate of 12 for rs 57 how many aplles should be sold to earn a net profit of rs 45
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cp of 8 = 34
cp of 1 = 34/8 = 17/4
sp of 12 = 57
1 = 57/12
profit = 57/12 - 17/4
57- 51/12 = 6/12 = 1/2
cp of 1 = 34/8 = 17/4
sp of 12 = 57
1 = 57/12
profit = 57/12 - 17/4
57- 51/12 = 6/12 = 1/2
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