Question

by selling a book for $16.50, a book seller losses 12percent on cost. what is the cost price of the book.​

Answer 1

Answer:

Step-by-step explanation:x=cost of book

$16.50 is the cost of book minus 12% of the cost of book

16.5=x-(.12x)

16.5=.88x

18.75=x

Cost: $18.75

OR

by saying that the bookseller lost 12 % ur saying that the person whoh bought it payed 88 % of the price that the bookseller bought it for....

now... when puting it into a proportion you get...

16.50/X     =       88/100

now you multiply the diagonals of the proportion

88x = 1650

then divide... so that X= 18.75

Answer 2

Answer:

Step-by-step explanation:

sp = 16.50

Loss % on sp= 12%

(100-12) of cost price=16.50

88/100 x cp =16.50

Shift fraction to other side

Cp= 16.50 x 100/88

CP=1650/88

Cp=$18.75

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