हिंदी

By selling a book for ₹ 50, a shopkeeper suffers a loss of 10%. The cost price of the book is ₹ 60.

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प्रश्न

By selling a book for ₹ 50, a shopkeeper suffers a loss of 10%. The cost price of the book is ₹ 60.

विकल्प

  • True

  • False

MCQ
सत्य या असत्य
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उत्तर

This statement is False.

Explanation:

Given, S.P. = ₹ 50 and loss per cent = 10%

We know that,

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

⇒ Loss % = `("C.P." - "S.P.")/"C.P." xx 100`  ...[∵ Loss = C.P. – S.P.]

⇒ `10 = (("C.P." - 50))/"C.P." xx 100`

⇒ 10C.P. = 100C.P. – 5000

⇒ 90C.P. = 5000

⇒ C.P. = `5000/90`

∴ C.P. = ₹ 55.55

Hence, the cost price of the book is ₹ 55.55

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 7: Comparing Quantities - Exercise [पृष्ठ २०४]

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एनसीईआरटी एक्झांप्लर Mathematics Exemplar Class 7
अध्याय 7 Comparing Quantities
Exercise | Q 72. | पृष्ठ २०४

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