A shopkeeper earns a profit of Rs 1 by selling a pencil and a loss of 20 paise by selling an eraser .
i) In a given day he had a loss of Rs 10 . On this day , he sold 35 pencils . How many erasers were sold on this day .
ii) Next day he earn a profit of Rs 25 . On this day he sold 100 erasers . How many pencils did he sell .
Answer with statement.
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loss=10₹
loss is for only eraser,so
20paise×(no.of erasers)=10₹
0.2×(no.of erasers)=10
no.of erasers=10/0.2
no.of erasers=50
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