Question

A bookstore manager earns a profit of rupees 20 by selling one new book and incurs a loss of rupees 10 by selling a second hand old book. In a particular month he earns neither profit nor loss. If he sold 25 new book, how many second hand old books did he sell?

Answer 1

Answer:

24

Step-by-step explanation:

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Answer 2

50

explanation:

new book sold= 25

one book profit= 20rs

total = 500

one month profit = 0

therefore,old book sold = ' ( 2 × 25 ) '× 10 = 500 = loss of 500 ( - 500 )

= 2 × 25

= 50