Question

a man sells a book at a profit of 20%. If he had bought it at 20% less and sold it for 60
Less he would have gained 25%. Find the cost price of the book.
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Answer 1

Answer:

Step-by-step explanation:

Plz refer from the attachment

Answer 2

Step-by-step explanation:

let cost price of the book =Rs100

then selling price would be Rs125

new cp @20percent less = Rs80

new sp @30percent profit =30/100×80

=Rs104

now the difference between the two selling price =125-104=Rs21

when difference is 21 then cp is Rs100

when difference is 1050 then cp=100×1050/21

=Rs5000

hence the cp of article is Rs5000/-