A shopkeeper earns a profit of rs 25 by selling 10 register and losses rs 1.5 by selling 2 notebooks . He losses rs15 in total . If he sells 30 register then find number of notebook sold
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Step-by-step explanation:Profit per pen = re.1
profit for 45 pens = rs.45
if profit is always in positive then loss for the month is -5
so 45+x = -5
x = -50
so the loss is -50
pencils sold = (50/0.40)
= 125
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