Question

A shopkeeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of the cost price and the printed price of the book is​

Answer 1

Answer:45:56

Step-by-step explanation:

Let the Cost price be 100 Hence ,SP=100+12% of 100=

112

If the marked price be X, then 90%of X=112⇒x=112×100 /90

x=11200/90

zero,zero get cancelled

⇒x=Rs.1120/9

Hence,Required ratio=100 : 1120/9

9 goes to lhs [left hand side]

and gets multiplied

100 * 9 =900

=900:1120

=45:56