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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ८

If the selling price of 10 rulers is the same as the cost price of 15 rulers, then find the profit percentage

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प्रश्न

If the selling price of 10 rulers is the same as the cost price of 15 rulers, then find the profit percentage

योग
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उत्तर

Let cost price of one ruler be x

Given that selling price (S.P) of 10 rulers

i.e., same as cost price (C.P) of 15 rulers

∴ S.P of 10 rulers = 15 × x = 15x

∴ S.P of 1 ruler = `(15x)/10` = 1.5x

∴ Gain = S.P of 1 ruler – C.P of 1 ruler

= 1.5x – x = 0.5x

Gain % = `"Gain"/"C.P" xx 100`

= `(0.5x)/x xx 100`

 = 50%

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अध्याय 4: Life Mathematics - Exercise 4.2 [पृष्ठ १३१]

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सामाचीर कलवी Mathematics [English] Class 8 TN Board
अध्याय 4 Life Mathematics
Exercise 4.2 | Q 4 | पृष्ठ १३१

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