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kodGreya [7K]
2 years ago
11

A book seller gains 30% on the cost price by selling a book for $130.Calculate the cost price of the book.​

Mathematics
1 answer:
zlopas [31]2 years ago
6 0

Answer:

Let the cost price be x

  • Selling price, S.P. = 130
  • Gain % = 30%

\rm{C.P. = \dfrac{S.P. \times 100}{100+ gain \% }}

\rm{C.P. = \dfrac{130 \times 100}{100+30}}

\rm{ C.P. = \dfrac{130}{30} }

\large{\boxed{\rm{ C.P. =  \dfrac{13}{3}}}}

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